40641250

素因数分解:

$2^1\times 5^4\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1$

素因数の和:137

約数の個数: 80

約数和(自身を含む): 85416408

約数和(自身を除く): 44775158

約数列:

[1, 2, 5, 10, 13, 25, 26, 41, 50, 61, 65, 82, 122, 125, 130, 205, 250, 305, 325, 410, 533, 610, 625, 650, 793, 1025, 1066, 1250, 1525, 1586, 1625, 2050, 2501, 2665, 3050, 3250, 3965, 5002, 5125, 5330, 7625, 7930, 8125, 10250, 12505, 13325, 15250, 16250, 19825, 25010, 25625, 26650, 32513, 38125, 39650, 51250, 62525, 65026, 66625, 76250, 99125, 125050, 133250, 162565, 198250, 312625, 325130, 333125, 495625, 625250, 666250, 812825, 991250, 1563125, 1625650, 3126250, 4064125, 8128250, 20320625, 40641250]

約数ペア:

[(1, 40641250), (2, 20320625), (5, 8128250), (10, 4064125), (13, 3126250), (25, 1625650), (26, 1563125), (41, 991250), (50, 812825), (61, 666250), (65, 625250), (82, 495625), (122, 333125), (125, 325130), (130, 312625), (205, 198250), (250, 162565), (305, 133250), (325, 125050), (410, 99125), (533, 76250), (610, 66625), (625, 65026), (650, 62525), (793, 51250), (1025, 39650), (1066, 38125), (1250, 32513), (1525, 26650), (1586, 25625), (1625, 25010), (2050, 19825), (2501, 16250), (2665, 15250), (3050, 13325), (3250, 12505), (3965, 10250), (5002, 8125), (5125, 7930), (5330, 7625)]