505331320

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1\times {\mathrm{179}}^1$

素因数の和:353

約数の個数: 128

約数和(自身を含む): 1265544000

約数和(自身を除く): 760212680

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 61, 65, 89, 104, 122, 130, 178, 179, 244, 260, 305, 356, 358, 445, 488, 520, 610, 712, 716, 793, 890, 895, 1157, 1220, 1432, 1586, 1780, 1790, 2314, 2327, 2440, 3172, 3560, 3580, 3965, 4628, 4654, 5429, 5785, 6344, 7160, 7930, 9256, 9308, 10858, 10919, 11570, 11635, 15860, 15931, 18616, 21716, 21838, 23140, 23270, 27145, 31720, 31862, 43432, 43676, 46280, 46540, 54290, 54595, 63724, 70577, 79655, 87352, 93080, 108580, 109190, 127448, 141154, 141947, 159310, 207103, 217160, 218380, 282308, 283894, 318620, 352885, 414206, 436760, 564616, 567788, 637240, 705770, 709735, 828412, 971791, 1035515, 1135576, 1411540, 1419470, 1656824, 1943582, 2071030, 2823080, 2838940, 3887164, 4142060, 4858955, 5677880, 7774328, 8284120, 9717910, 12633283, 19435820, 25266566, 38871640, 50533132, 63166415, 101066264, 126332830, 252665660, 505331320]

約数ペア:

[(1, 505331320), (2, 252665660), (4, 126332830), (5, 101066264), (8, 63166415), (10, 50533132), (13, 38871640), (20, 25266566), (26, 19435820), (40, 12633283), (52, 9717910), (61, 8284120), (65, 7774328), (89, 5677880), (104, 4858955), (122, 4142060), (130, 3887164), (178, 2838940), (179, 2823080), (244, 2071030), (260, 1943582), (305, 1656824), (356, 1419470), (358, 1411540), (445, 1135576), (488, 1035515), (520, 971791), (610, 828412), (712, 709735), (716, 705770), (793, 637240), (890, 567788), (895, 564616), (1157, 436760), (1220, 414206), (1432, 352885), (1586, 318620), (1780, 283894), (1790, 282308), (2314, 218380), (2327, 217160), (2440, 207103), (3172, 159310), (3560, 141947), (3580, 141154), (3965, 127448), (4628, 109190), (4654, 108580), (5429, 93080), (5785, 87352), (6344, 79655), (7160, 70577), (7930, 63724), (9256, 54595), (9308, 54290), (10858, 46540), (10919, 46280), (11570, 43676), (11635, 43432), (15860, 31862), (15931, 31720), (18616, 27145), (21716, 23270), (21838, 23140)]