1210417940

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^2\times {\mathrm{71}}^1\times {\mathrm{887}}^1$

素因数の和:1029

約数の個数: 72

約数和(自身を含む): 2666514816

約数和(自身を除く): 1456096876

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 71, 124, 142, 155, 284, 310, 355, 620, 710, 887, 961, 1420, 1774, 1922, 2201, 3548, 3844, 4402, 4435, 4805, 8804, 8870, 9610, 11005, 17740, 19220, 22010, 27497, 44020, 54994, 62977, 68231, 109988, 125954, 136462, 137485, 251908, 272924, 274970, 314885, 341155, 549940, 629770, 682310, 852407, 1259540, 1364620, 1704814, 1952287, 3409628, 3904574, 4262035, 7809148, 8524070, 9761435, 17048140, 19522870, 39045740, 60520897, 121041794, 242083588, 302604485, 605208970, 1210417940]

約数ペア:

[(1, 1210417940), (2, 605208970), (4, 302604485), (5, 242083588), (10, 121041794), (20, 60520897), (31, 39045740), (62, 19522870), (71, 17048140), (124, 9761435), (142, 8524070), (155, 7809148), (284, 4262035), (310, 3904574), (355, 3409628), (620, 1952287), (710, 1704814), (887, 1364620), (961, 1259540), (1420, 852407), (1774, 682310), (1922, 629770), (2201, 549940), (3548, 341155), (3844, 314885), (4402, 274970), (4435, 272924), (4805, 251908), (8804, 137485), (8870, 136462), (9610, 125954), (11005, 109988), (17740, 68231), (19220, 62977), (22010, 54994), (27497, 44020)]