72112820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{389}}^1$

素因数の和:465

約数の個数: 96

約数和(自身を含む): 176117760

約数和(自身を除く): 104004940

約数列:

[1, 2, 4, 5, 10, 13, 20, 23, 26, 31, 46, 52, 62, 65, 92, 115, 124, 130, 155, 230, 260, 299, 310, 389, 403, 460, 598, 620, 713, 778, 806, 1196, 1426, 1495, 1556, 1612, 1945, 2015, 2852, 2990, 3565, 3890, 4030, 5057, 5980, 7130, 7780, 8060, 8947, 9269, 10114, 12059, 14260, 17894, 18538, 20228, 24118, 25285, 35788, 37076, 44735, 46345, 48236, 50570, 60295, 89470, 92690, 101140, 116311, 120590, 156767, 178940, 185380, 232622, 241180, 277357, 313534, 465244, 554714, 581555, 627068, 783835, 1109428, 1163110, 1386785, 1567670, 2326220, 2773570, 3135340, 3605641, 5547140, 7211282, 14422564, 18028205, 36056410, 72112820]

約数ペア:

[(1, 72112820), (2, 36056410), (4, 18028205), (5, 14422564), (10, 7211282), (13, 5547140), (20, 3605641), (23, 3135340), (26, 2773570), (31, 2326220), (46, 1567670), (52, 1386785), (62, 1163110), (65, 1109428), (92, 783835), (115, 627068), (124, 581555), (130, 554714), (155, 465244), (230, 313534), (260, 277357), (299, 241180), (310, 232622), (389, 185380), (403, 178940), (460, 156767), (598, 120590), (620, 116311), (713, 101140), (778, 92690), (806, 89470), (1196, 60295), (1426, 50570), (1495, 48236), (1556, 46345), (1612, 44735), (1945, 37076), (2015, 35788), (2852, 25285), (2990, 24118), (3565, 20228), (3890, 18538), (4030, 17894), (5057, 14260), (5980, 12059), (7130, 10114), (7780, 9269), (8060, 8947)]