78757360

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{2887}}^1$

素因数の和:2942

約数の個数: 80

約数和(自身を含む): 206272512

約数和(自身を除く): 127515152

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 31, 40, 44, 55, 62, 80, 88, 110, 124, 155, 176, 220, 248, 310, 341, 440, 496, 620, 682, 880, 1240, 1364, 1705, 2480, 2728, 2887, 3410, 5456, 5774, 6820, 11548, 13640, 14435, 23096, 27280, 28870, 31757, 46192, 57740, 63514, 89497, 115480, 127028, 158785, 178994, 230960, 254056, 317570, 357988, 447485, 508112, 635140, 715976, 894970, 984467, 1270280, 1431952, 1789940, 1968934, 2540560, 3579880, 3937868, 4922335, 7159760, 7875736, 9844670, 15751472, 19689340, 39378680, 78757360]

約数ペア:

[(1, 78757360), (2, 39378680), (4, 19689340), (5, 15751472), (8, 9844670), (10, 7875736), (11, 7159760), (16, 4922335), (20, 3937868), (22, 3579880), (31, 2540560), (40, 1968934), (44, 1789940), (55, 1431952), (62, 1270280), (80, 984467), (88, 894970), (110, 715976), (124, 635140), (155, 508112), (176, 447485), (220, 357988), (248, 317570), (310, 254056), (341, 230960), (440, 178994), (496, 158785), (620, 127028), (682, 115480), (880, 89497), (1240, 63514), (1364, 57740), (1705, 46192), (2480, 31757), (2728, 28870), (2887, 27280), (3410, 23096), (5456, 14435), (5774, 13640), (6820, 11548)]