81275220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{739}}^1$

素因数の和:814

約数の個数: 144

約数和(自身を含む): 271514880

約数和(自身を除く): 190239660

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 47, 52, 60, 65, 78, 90, 94, 117, 130, 141, 156, 180, 188, 195, 234, 235, 260, 282, 390, 423, 468, 470, 564, 585, 611, 705, 739, 780, 846, 940, 1170, 1222, 1410, 1478, 1692, 1833, 2115, 2217, 2340, 2444, 2820, 2956, 3055, 3666, 3695, 4230, 4434, 5499, 6110, 6651, 7332, 7390, 8460, 8868, 9165, 9607, 10998, 11085, 12220, 13302, 14780, 18330, 19214, 21996, 22170, 26604, 27495, 28821, 33255, 34733, 36660, 38428, 44340, 48035, 54990, 57642, 66510, 69466, 86463, 96070, 104199, 109980, 115284, 133020, 138932, 144105, 172926, 173665, 192140, 208398, 288210, 312597, 345852, 347330, 416796, 432315, 451529, 520995, 576420, 625194, 694660, 864630, 903058, 1041990, 1250388, 1354587, 1562985, 1729260, 1806116, 2083980, 2257645, 2709174, 3125970, 4063761, 4515290, 5418348, 6251940, 6772935, 8127522, 9030580, 13545870, 16255044, 20318805, 27091740, 40637610, 81275220]

約数ペア:

[(1, 81275220), (2, 40637610), (3, 27091740), (4, 20318805), (5, 16255044), (6, 13545870), (9, 9030580), (10, 8127522), (12, 6772935), (13, 6251940), (15, 5418348), (18, 4515290), (20, 4063761), (26, 3125970), (30, 2709174), (36, 2257645), (39, 2083980), (45, 1806116), (47, 1729260), (52, 1562985), (60, 1354587), (65, 1250388), (78, 1041990), (90, 903058), (94, 864630), (117, 694660), (130, 625194), (141, 576420), (156, 520995), (180, 451529), (188, 432315), (195, 416796), (234, 347330), (235, 345852), (260, 312597), (282, 288210), (390, 208398), (423, 192140), (468, 173665), (470, 172926), (564, 144105), (585, 138932), (611, 133020), (705, 115284), (739, 109980), (780, 104199), (846, 96070), (940, 86463), (1170, 69466), (1222, 66510), (1410, 57642), (1478, 54990), (1692, 48035), (1833, 44340), (2115, 38428), (2217, 36660), (2340, 34733), (2444, 33255), (2820, 28821), (2956, 27495), (3055, 26604), (3666, 22170), (3695, 21996), (4230, 19214), (4434, 18330), (5499, 14780), (6110, 13302), (6651, 12220), (7332, 11085), (7390, 10998), (8460, 9607), (8868, 9165)]