259921000

素因数分解:

$2^3\times 5^3\times {\mathrm{61}}^1\times {\mathrm{4261}}^1$

素因数の和:4343

約数の個数: 64

約数和(自身を含む): 618330960

約数和(自身を除く): 358409960

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 61, 100, 122, 125, 200, 244, 250, 305, 488, 500, 610, 1000, 1220, 1525, 2440, 3050, 4261, 6100, 7625, 8522, 12200, 15250, 17044, 21305, 30500, 34088, 42610, 61000, 85220, 106525, 170440, 213050, 259921, 426100, 519842, 532625, 852200, 1039684, 1065250, 1299605, 2079368, 2130500, 2599210, 4261000, 5198420, 6498025, 10396840, 12996050, 25992100, 32490125, 51984200, 64980250, 129960500, 259921000]

約数ペア:

[(1, 259921000), (2, 129960500), (4, 64980250), (5, 51984200), (8, 32490125), (10, 25992100), (20, 12996050), (25, 10396840), (40, 6498025), (50, 5198420), (61, 4261000), (100, 2599210), (122, 2130500), (125, 2079368), (200, 1299605), (244, 1065250), (250, 1039684), (305, 852200), (488, 532625), (500, 519842), (610, 426100), (1000, 259921), (1220, 213050), (1525, 170440), (2440, 106525), (3050, 85220), (4261, 61000), (6100, 42610), (7625, 34088), (8522, 30500), (12200, 21305), (15250, 17044)]