81111120

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{8243}}^1$

素因数の和:8300

約数の個数: 80

約数和(自身を含む): 257608512

約数和(自身を除く): 176497392

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 41, 48, 60, 80, 82, 120, 123, 164, 205, 240, 246, 328, 410, 492, 615, 656, 820, 984, 1230, 1640, 1968, 2460, 3280, 4920, 8243, 9840, 16486, 24729, 32972, 41215, 49458, 65944, 82430, 98916, 123645, 131888, 164860, 197832, 247290, 329720, 337963, 395664, 494580, 659440, 675926, 989160, 1013889, 1351852, 1689815, 1978320, 2027778, 2703704, 3379630, 4055556, 5069445, 5407408, 6759260, 8111112, 10138890, 13518520, 16222224, 20277780, 27037040, 40555560, 81111120]

約数ペア:

[(1, 81111120), (2, 40555560), (3, 27037040), (4, 20277780), (5, 16222224), (6, 13518520), (8, 10138890), (10, 8111112), (12, 6759260), (15, 5407408), (16, 5069445), (20, 4055556), (24, 3379630), (30, 2703704), (40, 2027778), (41, 1978320), (48, 1689815), (60, 1351852), (80, 1013889), (82, 989160), (120, 675926), (123, 659440), (164, 494580), (205, 395664), (240, 337963), (246, 329720), (328, 247290), (410, 197832), (492, 164860), (615, 131888), (656, 123645), (820, 98916), (984, 82430), (1230, 65944), (1640, 49458), (1968, 41215), (2460, 32972), (3280, 24729), (4920, 16486), (8243, 9840)]