263006480

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^2\times {\mathrm{311}}^1$

素因数の和:397

約数の個数: 120

約数和(自身を含む): 691509312

約数和(自身を除く): 428502832

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 31, 40, 44, 55, 62, 80, 88, 110, 124, 155, 176, 220, 248, 310, 311, 341, 440, 496, 620, 622, 682, 880, 961, 1240, 1244, 1364, 1555, 1705, 1922, 2480, 2488, 2728, 3110, 3410, 3421, 3844, 4805, 4976, 5456, 6220, 6820, 6842, 7688, 9610, 9641, 10571, 12440, 13640, 13684, 15376, 17105, 19220, 19282, 21142, 24880, 27280, 27368, 34210, 38440, 38564, 42284, 48205, 52855, 54736, 68420, 76880, 77128, 84568, 96410, 105710, 106051, 136840, 154256, 169136, 192820, 211420, 212102, 273680, 298871, 385640, 422840, 424204, 530255, 597742, 771280, 845680, 848408, 1060510, 1195484, 1494355, 1696816, 2121020, 2390968, 2988710, 3287581, 4242040, 4781936, 5977420, 6575162, 8484080, 11954840, 13150324, 16437905, 23909680, 26300648, 32875810, 52601296, 65751620, 131503240, 263006480]

約数ペア:

[(1, 263006480), (2, 131503240), (4, 65751620), (5, 52601296), (8, 32875810), (10, 26300648), (11, 23909680), (16, 16437905), (20, 13150324), (22, 11954840), (31, 8484080), (40, 6575162), (44, 5977420), (55, 4781936), (62, 4242040), (80, 3287581), (88, 2988710), (110, 2390968), (124, 2121020), (155, 1696816), (176, 1494355), (220, 1195484), (248, 1060510), (310, 848408), (311, 845680), (341, 771280), (440, 597742), (496, 530255), (620, 424204), (622, 422840), (682, 385640), (880, 298871), (961, 273680), (1240, 212102), (1244, 211420), (1364, 192820), (1555, 169136), (1705, 154256), (1922, 136840), (2480, 106051), (2488, 105710), (2728, 96410), (3110, 84568), (3410, 77128), (3421, 76880), (3844, 68420), (4805, 54736), (4976, 52855), (5456, 48205), (6220, 42284), (6820, 38564), (6842, 38440), (7688, 34210), (9610, 27368), (9641, 27280), (10571, 24880), (12440, 21142), (13640, 19282), (13684, 19220), (15376, 17105)]