19902080290

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{47591}}^1$

素因数の和:47719

約数の個数: 64

約数和(自身を含む): 39474708480

約数和(自身を除く): 19572628190

約数列:

[1, 2, 5, 10, 19, 31, 38, 62, 71, 95, 142, 155, 190, 310, 355, 589, 710, 1178, 1349, 2201, 2698, 2945, 4402, 5890, 6745, 11005, 13490, 22010, 41819, 47591, 83638, 95182, 209095, 237955, 418190, 475910, 904229, 1475321, 1808458, 2950642, 3378961, 4521145, 6757922, 7376605, 9042290, 14753210, 16894805, 28031099, 33789610, 56062198, 64200259, 104747791, 128400518, 140155495, 209495582, 280310990, 321001295, 523738955, 642002590, 1047477910, 1990208029, 3980416058, 9951040145, 19902080290]

約数ペア:

[(1, 19902080290), (2, 9951040145), (5, 3980416058), (10, 1990208029), (19, 1047477910), (31, 642002590), (38, 523738955), (62, 321001295), (71, 280310990), (95, 209495582), (142, 140155495), (155, 128400518), (190, 104747791), (310, 64200259), (355, 56062198), (589, 33789610), (710, 28031099), (1178, 16894805), (1349, 14753210), (2201, 9042290), (2698, 7376605), (2945, 6757922), (4402, 4521145), (5890, 3378961), (6745, 2950642), (11005, 1808458), (13490, 1475321), (22010, 904229), (41819, 475910), (47591, 418190), (83638, 237955), (95182, 209095)]