649779220

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{509}}^1$

素因数の和:649

約数の個数: 96

約数和(自身を含む): 1480550400

約数和(自身を除く): 830771180

約数列:

[1, 2, 4, 5, 10, 20, 29, 31, 58, 62, 71, 116, 124, 142, 145, 155, 284, 290, 310, 355, 509, 580, 620, 710, 899, 1018, 1420, 1798, 2036, 2059, 2201, 2545, 3596, 4118, 4402, 4495, 5090, 8236, 8804, 8990, 10180, 10295, 11005, 14761, 15779, 17980, 20590, 22010, 29522, 31558, 36139, 41180, 44020, 59044, 63116, 63829, 72278, 73805, 78895, 127658, 144556, 147610, 157790, 180695, 255316, 295220, 315580, 319145, 361390, 457591, 638290, 722780, 915182, 1048031, 1120309, 1276580, 1830364, 2096062, 2240618, 2287955, 4192124, 4481236, 4575910, 5240155, 5601545, 9151820, 10480310, 11203090, 20960620, 22406180, 32488961, 64977922, 129955844, 162444805, 324889610, 649779220]

約数ペア:

[(1, 649779220), (2, 324889610), (4, 162444805), (5, 129955844), (10, 64977922), (20, 32488961), (29, 22406180), (31, 20960620), (58, 11203090), (62, 10480310), (71, 9151820), (116, 5601545), (124, 5240155), (142, 4575910), (145, 4481236), (155, 4192124), (284, 2287955), (290, 2240618), (310, 2096062), (355, 1830364), (509, 1276580), (580, 1120309), (620, 1048031), (710, 915182), (899, 722780), (1018, 638290), (1420, 457591), (1798, 361390), (2036, 319145), (2059, 315580), (2201, 295220), (2545, 255316), (3596, 180695), (4118, 157790), (4402, 147610), (4495, 144556), (5090, 127658), (8236, 78895), (8804, 73805), (8990, 72278), (10180, 63829), (10295, 63116), (11005, 59044), (14761, 44020), (15779, 41180), (17980, 36139), (20590, 31558), (22010, 29522)]