65281321875

素因数分解:

$3^1\times 5^5\times 7^2\times {\mathrm{11}}^1\times {\mathrm{12919}}^1$

素因数の和:12972

約数の個数: 144

約数和(自身を含む): 138073662720

約数和(自身を除く): 72792340845

約数列:

[1, 3, 5, 7, 11, 15, 21, 25, 33, 35, 49, 55, 75, 77, 105, 125, 147, 165, 175, 231, 245, 275, 375, 385, 525, 539, 625, 735, 825, 875, 1155, 1225, 1375, 1617, 1875, 1925, 2625, 2695, 3125, 3675, 4125, 4375, 5775, 6125, 6875, 8085, 9375, 9625, 12919, 13125, 13475, 18375, 20625, 21875, 28875, 30625, 34375, 38757, 40425, 48125, 64595, 65625, 67375, 90433, 91875, 103125, 142109, 144375, 153125, 193785, 202125, 240625, 271299, 322975, 336875, 426327, 452165, 459375, 633031, 710545, 721875, 968925, 994763, 1010625, 1356495, 1614875, 1684375, 1899093, 2131635, 2260825, 2984289, 3165155, 3552725, 4844625, 4973815, 5053125, 6782475, 6963341, 8074375, 9495465, 10658175, 11304125, 14921445, 15825775, 17763625, 20890023, 24223125, 24869075, 33912375, 34816705, 40371875, 47477325, 53290875, 56520625, 74607225, 79128875, 88818125, 104450115, 121115625, 124345375, 169561875, 174083525, 237386625, 266454375, 282603125, 373036125, 395644375, 444090625, 522250575, 621726875, 847809375, 870417625, 1186933125, 1332271875, 1865180625, 1978221875, 2611252875, 3108634375, 4352088125, 5934665625, 9325903125, 13056264375, 21760440625, 65281321875]

約数ペア:

[(1, 65281321875), (3, 21760440625), (5, 13056264375), (7, 9325903125), (11, 5934665625), (15, 4352088125), (21, 3108634375), (25, 2611252875), (33, 1978221875), (35, 1865180625), (49, 1332271875), (55, 1186933125), (75, 870417625), (77, 847809375), (105, 621726875), (125, 522250575), (147, 444090625), (165, 395644375), (175, 373036125), (231, 282603125), (245, 266454375), (275, 237386625), (375, 174083525), (385, 169561875), (525, 124345375), (539, 121115625), (625, 104450115), (735, 88818125), (825, 79128875), (875, 74607225), (1155, 56520625), (1225, 53290875), (1375, 47477325), (1617, 40371875), (1875, 34816705), (1925, 33912375), (2625, 24869075), (2695, 24223125), (3125, 20890023), (3675, 17763625), (4125, 15825775), (4375, 14921445), (5775, 11304125), (6125, 10658175), (6875, 9495465), (8085, 8074375), (9375, 6963341), (9625, 6782475), (12919, 5053125), (13125, 4973815), (13475, 4844625), (18375, 3552725), (20625, 3165155), (21875, 2984289), (28875, 2260825), (30625, 2131635), (34375, 1899093), (38757, 1684375), (40425, 1614875), (48125, 1356495), (64595, 1010625), (65625, 994763), (67375, 968925), (90433, 721875), (91875, 710545), (103125, 633031), (142109, 459375), (144375, 452165), (153125, 426327), (193785, 336875), (202125, 322975), (240625, 271299)]