123273680

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{25261}}^1$

素因数の和:25335

約数の個数: 40

約数和(自身を含む): 291321384

約数和(自身を除く): 168047704

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 244, 305, 488, 610, 976, 1220, 2440, 4880, 25261, 50522, 101044, 126305, 202088, 252610, 404176, 505220, 1010440, 1540921, 2020880, 3081842, 6163684, 7704605, 12327368, 15409210, 24654736, 30818420, 61636840, 123273680]

約数ペア:

[(1, 123273680), (2, 61636840), (4, 30818420), (5, 24654736), (8, 15409210), (10, 12327368), (16, 7704605), (20, 6163684), (40, 3081842), (61, 2020880), (80, 1540921), (122, 1010440), (244, 505220), (305, 404176), (488, 252610), (610, 202088), (976, 126305), (1220, 101044), (2440, 50522), (4880, 25261)]