1960913680

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{71881}}^1$

素因数の和:71936

約数の個数: 80

約数和(自身を含む): 5134099968

約数和(自身を除く): 3173186288

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, 3410, 5456, 6820, 13640, 27280, 71881, 143762, 287524, 359405, 575048, 718810, 790691, 1150096, 1437620, 1581382, 2228311, 2875240, 3162764, 3953455, 4456622, 5750480, 6325528, 7906910, 8913244, 11141555, 12651056, 15813820, 17826488, 22283110, 24511421, 31627640, 35652976, 44566220, 49022842, 63255280, 89132440, 98045684, 122557105, 178264880, 196091368, 245114210, 392182736, 490228420, 980456840, 1960913680]

約数ペア:

[(1, 1960913680), (2, 980456840), (4, 490228420), (5, 392182736), (8, 245114210), (10, 196091368), (11, 178264880), (16, 122557105), (20, 98045684), (22, 89132440), (31, 63255280), (40, 49022842), (44, 44566220), (55, 35652976), (62, 31627640), (80, 24511421), (88, 22283110), (110, 17826488), (124, 15813820), (155, 12651056), (176, 11141555), (220, 8913244), (248, 7906910), (310, 6325528), (341, 5750480), (440, 4456622), (496, 3953455), (620, 3162764), (682, 2875240), (880, 2228311), (1240, 1581382), (1364, 1437620), (1705, 1150096), (2480, 790691), (2728, 718810), (3410, 575048), (5456, 359405), (6820, 287524), (13640, 143762), (27280, 71881)]