78874900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{83}}^1$

素因数の和:170

約数の個数: 144

約数和(自身を含む): 202112064

約数和(自身を除く): 123237164

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 25, 26, 34, 43, 50, 52, 65, 68, 83, 85, 86, 100, 130, 166, 170, 172, 215, 221, 260, 325, 332, 340, 415, 425, 430, 442, 559, 650, 731, 830, 850, 860, 884, 1075, 1079, 1105, 1118, 1300, 1411, 1462, 1660, 1700, 2075, 2150, 2158, 2210, 2236, 2795, 2822, 2924, 3569, 3655, 4150, 4300, 4316, 4420, 5395, 5525, 5590, 5644, 7055, 7138, 7310, 8300, 9503, 10790, 11050, 11180, 13975, 14110, 14276, 14620, 17845, 18275, 18343, 19006, 21580, 22100, 26975, 27950, 28220, 35275, 35690, 36550, 36686, 38012, 46397, 47515, 53950, 55900, 60673, 70550, 71380, 73100, 73372, 89225, 91715, 92794, 95030, 107900, 121346, 141100, 178450, 183430, 185588, 190060, 231985, 237575, 242692, 303365, 356900, 366860, 458575, 463970, 475150, 606730, 788749, 917150, 927940, 950300, 1159925, 1213460, 1516825, 1577498, 1834300, 2319850, 3033650, 3154996, 3943745, 4639700, 6067300, 7887490, 15774980, 19718725, 39437450, 78874900]

約数ペア:

[(1, 78874900), (2, 39437450), (4, 19718725), (5, 15774980), (10, 7887490), (13, 6067300), (17, 4639700), (20, 3943745), (25, 3154996), (26, 3033650), (34, 2319850), (43, 1834300), (50, 1577498), (52, 1516825), (65, 1213460), (68, 1159925), (83, 950300), (85, 927940), (86, 917150), (100, 788749), (130, 606730), (166, 475150), (170, 463970), (172, 458575), (215, 366860), (221, 356900), (260, 303365), (325, 242692), (332, 237575), (340, 231985), (415, 190060), (425, 185588), (430, 183430), (442, 178450), (559, 141100), (650, 121346), (731, 107900), (830, 95030), (850, 92794), (860, 91715), (884, 89225), (1075, 73372), (1079, 73100), (1105, 71380), (1118, 70550), (1300, 60673), (1411, 55900), (1462, 53950), (1660, 47515), (1700, 46397), (2075, 38012), (2150, 36686), (2158, 36550), (2210, 35690), (2236, 35275), (2795, 28220), (2822, 27950), (2924, 26975), (3569, 22100), (3655, 21580), (4150, 19006), (4300, 18343), (4316, 18275), (4420, 17845), (5395, 14620), (5525, 14276), (5590, 14110), (5644, 13975), (7055, 11180), (7138, 11050), (7310, 10790), (8300, 9503)]