205214940

素因数分解:

$2^2\times 3^2\times 5^1\times 7^2\times {\mathrm{53}}^1\times {\mathrm{439}}^1$

素因数の和:521

約数の個数: 216

約数和(自身を含む): 739458720

約数和(自身を除く): 534243780

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 49, 53, 60, 63, 70, 84, 90, 98, 105, 106, 126, 140, 147, 159, 180, 196, 210, 212, 245, 252, 265, 294, 315, 318, 371, 420, 439, 441, 477, 490, 530, 588, 630, 636, 735, 742, 795, 878, 882, 954, 980, 1060, 1113, 1260, 1317, 1470, 1484, 1590, 1756, 1764, 1855, 1908, 2195, 2205, 2226, 2385, 2597, 2634, 2940, 3073, 3180, 3339, 3710, 3951, 4390, 4410, 4452, 4770, 5194, 5268, 5565, 6146, 6585, 6678, 7420, 7791, 7902, 8780, 8820, 9219, 9540, 10388, 11130, 12292, 12985, 13170, 13356, 15365, 15582, 15804, 16695, 18438, 19755, 21511, 22260, 23267, 23373, 25970, 26340, 27657, 30730, 31164, 33390, 36876, 38955, 39510, 43022, 46095, 46534, 46746, 51940, 55314, 61460, 64533, 66780, 69801, 77910, 79020, 86044, 92190, 93068, 93492, 107555, 110628, 116335, 116865, 129066, 138285, 139602, 155820, 162869, 184380, 193599, 209403, 215110, 232670, 233730, 258132, 276570, 279204, 322665, 325738, 349005, 387198, 418806, 430220, 465340, 467460, 488607, 553140, 645330, 651476, 698010, 774396, 814345, 837612, 967995, 977214, 1047015, 1140083, 1290660, 1396020, 1465821, 1628690, 1935990, 1954428, 2094030, 2280166, 2443035, 2931642, 3257380, 3420249, 3871980, 4188060, 4560332, 4886070, 5700415, 5863284, 6840498, 7329105, 9772140, 10260747, 11400830, 13680996, 14658210, 17101245, 20521494, 22801660, 29316420, 34202490, 41042988, 51303735, 68404980, 102607470, 205214940]

約数ペア:

[(1, 205214940), (2, 102607470), (3, 68404980), (4, 51303735), (5, 41042988), (6, 34202490), (7, 29316420), (9, 22801660), (10, 20521494), (12, 17101245), (14, 14658210), (15, 13680996), (18, 11400830), (20, 10260747), (21, 9772140), (28, 7329105), (30, 6840498), (35, 5863284), (36, 5700415), (42, 4886070), (45, 4560332), (49, 4188060), (53, 3871980), (60, 3420249), (63, 3257380), (70, 2931642), (84, 2443035), (90, 2280166), (98, 2094030), (105, 1954428), (106, 1935990), (126, 1628690), (140, 1465821), (147, 1396020), (159, 1290660), (180, 1140083), (196, 1047015), (210, 977214), (212, 967995), (245, 837612), (252, 814345), (265, 774396), (294, 698010), (315, 651476), (318, 645330), (371, 553140), (420, 488607), (439, 467460), (441, 465340), (477, 430220), (490, 418806), (530, 387198), (588, 349005), (630, 325738), (636, 322665), (735, 279204), (742, 276570), (795, 258132), (878, 233730), (882, 232670), (954, 215110), (980, 209403), (1060, 193599), (1113, 184380), (1260, 162869), (1317, 155820), (1470, 139602), (1484, 138285), (1590, 129066), (1756, 116865), (1764, 116335), (1855, 110628), (1908, 107555), (2195, 93492), (2205, 93068), (2226, 92190), (2385, 86044), (2597, 79020), (2634, 77910), (2940, 69801), (3073, 66780), (3180, 64533), (3339, 61460), (3710, 55314), (3951, 51940), (4390, 46746), (4410, 46534), (4452, 46095), (4770, 43022), (5194, 39510), (5268, 38955), (5565, 36876), (6146, 33390), (6585, 31164), (6678, 30730), (7420, 27657), (7791, 26340), (7902, 25970), (8780, 23373), (8820, 23267), (9219, 22260), (9540, 21511), (10388, 19755), (11130, 18438), (12292, 16695), (12985, 15804), (13170, 15582), (13356, 15365)]