81698220

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1$

素因数の和:134

約数の個数: 240

約数和(自身を含む): 278087040

約数和(自身を除く): 196388820

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 29, 30, 36, 37, 45, 47, 54, 58, 60, 74, 81, 87, 90, 94, 108, 111, 116, 135, 141, 145, 148, 162, 174, 180, 185, 188, 222, 235, 261, 270, 282, 290, 324, 333, 348, 370, 405, 423, 435, 444, 470, 522, 540, 555, 564, 580, 666, 705, 740, 783, 810, 846, 870, 940, 999, 1044, 1073, 1110, 1269, 1305, 1332, 1363, 1410, 1566, 1620, 1665, 1692, 1739, 1740, 1998, 2115, 2146, 2220, 2349, 2538, 2610, 2726, 2820, 2997, 3132, 3219, 3330, 3478, 3807, 3915, 3996, 4089, 4230, 4292, 4698, 4995, 5076, 5217, 5220, 5365, 5452, 5994, 6345, 6438, 6660, 6815, 6956, 7614, 7830, 8178, 8460, 8695, 9396, 9657, 9990, 10434, 10730, 11745, 11988, 12267, 12690, 12876, 13630, 14985, 15228, 15651, 15660, 16095, 16356, 17390, 19035, 19314, 19980, 20445, 20868, 21460, 23490, 24534, 25380, 26085, 27260, 28971, 29970, 31302, 32190, 34780, 36801, 38070, 38628, 40890, 46953, 46980, 48285, 49068, 50431, 52170, 57942, 59940, 61335, 62604, 64380, 73602, 76140, 78255, 81780, 86913, 93906, 96570, 100862, 104340, 110403, 115884, 122670, 140859, 144855, 147204, 151293, 156510, 173826, 184005, 187812, 193140, 201724, 220806, 234765, 245340, 252155, 281718, 289710, 302586, 313020, 347652, 368010, 434565, 441612, 453879, 469530, 504310, 552015, 563436, 579420, 605172, 704295, 736020, 756465, 869130, 907758, 939060, 1008620, 1104030, 1361637, 1408590, 1512930, 1738260, 1815516, 2208060, 2269395, 2723274, 2817180, 3025860, 4084911, 4538790, 5446548, 6808185, 8169822, 9077580, 13616370, 16339644, 20424555, 27232740, 40849110, 81698220]

約数ペア:

[(1, 81698220), (2, 40849110), (3, 27232740), (4, 20424555), (5, 16339644), (6, 13616370), (9, 9077580), (10, 8169822), (12, 6808185), (15, 5446548), (18, 4538790), (20, 4084911), (27, 3025860), (29, 2817180), (30, 2723274), (36, 2269395), (37, 2208060), (45, 1815516), (47, 1738260), (54, 1512930), (58, 1408590), (60, 1361637), (74, 1104030), (81, 1008620), (87, 939060), (90, 907758), (94, 869130), (108, 756465), (111, 736020), (116, 704295), (135, 605172), (141, 579420), (145, 563436), (148, 552015), (162, 504310), (174, 469530), (180, 453879), (185, 441612), (188, 434565), (222, 368010), (235, 347652), (261, 313020), (270, 302586), (282, 289710), (290, 281718), (324, 252155), (333, 245340), (348, 234765), (370, 220806), (405, 201724), (423, 193140), (435, 187812), (444, 184005), (470, 173826), (522, 156510), (540, 151293), (555, 147204), (564, 144855), (580, 140859), (666, 122670), (705, 115884), (740, 110403), (783, 104340), (810, 100862), (846, 96570), (870, 93906), (940, 86913), (999, 81780), (1044, 78255), (1073, 76140), (1110, 73602), (1269, 64380), (1305, 62604), (1332, 61335), (1363, 59940), (1410, 57942), (1566, 52170), (1620, 50431), (1665, 49068), (1692, 48285), (1739, 46980), (1740, 46953), (1998, 40890), (2115, 38628), (2146, 38070), (2220, 36801), (2349, 34780), (2538, 32190), (2610, 31302), (2726, 29970), (2820, 28971), (2997, 27260), (3132, 26085), (3219, 25380), (3330, 24534), (3478, 23490), (3807, 21460), (3915, 20868), (3996, 20445), (4089, 19980), (4230, 19314), (4292, 19035), (4698, 17390), (4995, 16356), (5076, 16095), (5217, 15660), (5220, 15651), (5365, 15228), (5452, 14985), (5994, 13630), (6345, 12876), (6438, 12690), (6660, 12267), (6815, 11988), (6956, 11745), (7614, 10730), (7830, 10434), (8178, 9990), (8460, 9657), (8695, 9396)]