20131990125

素因数分解:

$3^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{67699}}^1$

素因数の和:67791

約数の個数: 64

約数和(自身を含む): 36668486400

約数和(自身を除く): 16536496275

約数列:

[1, 3, 5, 13, 15, 25, 39, 61, 65, 75, 125, 183, 195, 305, 325, 375, 793, 915, 975, 1525, 1625, 2379, 3965, 4575, 4875, 7625, 11895, 19825, 22875, 59475, 67699, 99125, 203097, 297375, 338495, 880087, 1015485, 1692475, 2640261, 4129639, 4400435, 5077425, 8462375, 12388917, 13201305, 20648195, 22002175, 25387125, 53685307, 61944585, 66006525, 103240975, 110010875, 161055921, 268426535, 309722925, 330032625, 516204875, 805279605, 1342132675, 1548614625, 4026398025, 6710663375, 20131990125]

約数ペア:

[(1, 20131990125), (3, 6710663375), (5, 4026398025), (13, 1548614625), (15, 1342132675), (25, 805279605), (39, 516204875), (61, 330032625), (65, 309722925), (75, 268426535), (125, 161055921), (183, 110010875), (195, 103240975), (305, 66006525), (325, 61944585), (375, 53685307), (793, 25387125), (915, 22002175), (975, 20648195), (1525, 13201305), (1625, 12388917), (2379, 8462375), (3965, 5077425), (4575, 4400435), (4875, 4129639), (7625, 2640261), (11895, 1692475), (19825, 1015485), (22875, 880087), (59475, 338495), (67699, 297375), (99125, 203097)]