19894140

素因数分解:

$2^2\times 3^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{277}}^1$

素因数の和:321

約数の個数: 192

約数和(自身を含む): 74726400

約数和(自身を除く): 54832260

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 19, 20, 21, 27, 28, 30, 35, 36, 38, 42, 45, 54, 57, 60, 63, 70, 76, 84, 90, 95, 105, 108, 114, 126, 133, 135, 140, 171, 180, 189, 190, 210, 228, 252, 266, 270, 277, 285, 315, 342, 378, 380, 399, 420, 513, 532, 540, 554, 570, 630, 665, 684, 756, 798, 831, 855, 945, 1026, 1108, 1140, 1197, 1260, 1330, 1385, 1596, 1662, 1710, 1890, 1939, 1995, 2052, 2394, 2493, 2565, 2660, 2770, 3324, 3420, 3591, 3780, 3878, 3990, 4155, 4788, 4986, 5130, 5263, 5540, 5817, 5985, 7182, 7479, 7756, 7980, 8310, 9695, 9972, 10260, 10526, 11634, 11970, 12465, 14364, 14958, 15789, 16620, 17451, 17955, 19390, 21052, 23268, 23940, 24930, 26315, 29085, 29916, 31578, 34902, 35910, 36841, 37395, 38780, 47367, 49860, 52353, 52630, 58170, 63156, 69804, 71820, 73682, 74790, 78945, 87255, 94734, 104706, 105260, 110523, 116340, 142101, 147364, 149580, 157890, 174510, 184205, 189468, 209412, 221046, 236835, 261765, 284202, 315780, 331569, 349020, 368410, 442092, 473670, 523530, 552615, 568404, 663138, 710505, 736820, 947340, 994707, 1047060, 1105230, 1326276, 1421010, 1657845, 1989414, 2210460, 2842020, 3315690, 3978828, 4973535, 6631380, 9947070, 19894140]

約数ペア:

[(1, 19894140), (2, 9947070), (3, 6631380), (4, 4973535), (5, 3978828), (6, 3315690), (7, 2842020), (9, 2210460), (10, 1989414), (12, 1657845), (14, 1421010), (15, 1326276), (18, 1105230), (19, 1047060), (20, 994707), (21, 947340), (27, 736820), (28, 710505), (30, 663138), (35, 568404), (36, 552615), (38, 523530), (42, 473670), (45, 442092), (54, 368410), (57, 349020), (60, 331569), (63, 315780), (70, 284202), (76, 261765), (84, 236835), (90, 221046), (95, 209412), (105, 189468), (108, 184205), (114, 174510), (126, 157890), (133, 149580), (135, 147364), (140, 142101), (171, 116340), (180, 110523), (189, 105260), (190, 104706), (210, 94734), (228, 87255), (252, 78945), (266, 74790), (270, 73682), (277, 71820), (285, 69804), (315, 63156), (342, 58170), (378, 52630), (380, 52353), (399, 49860), (420, 47367), (513, 38780), (532, 37395), (540, 36841), (554, 35910), (570, 34902), (630, 31578), (665, 29916), (684, 29085), (756, 26315), (798, 24930), (831, 23940), (855, 23268), (945, 21052), (1026, 19390), (1108, 17955), (1140, 17451), (1197, 16620), (1260, 15789), (1330, 14958), (1385, 14364), (1596, 12465), (1662, 11970), (1710, 11634), (1890, 10526), (1939, 10260), (1995, 9972), (2052, 9695), (2394, 8310), (2493, 7980), (2565, 7756), (2660, 7479), (2770, 7182), (3324, 5985), (3420, 5817), (3591, 5540), (3780, 5263), (3878, 5130), (3990, 4986), (4155, 4788)]