18828840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1$

素因数の和:187

約数の個数: 128

約数和(自身を含む): 59875200

約数和(自身を除く): 41046360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 41, 43, 60, 82, 86, 89, 120, 123, 129, 164, 172, 178, 205, 215, 246, 258, 267, 328, 344, 356, 410, 430, 445, 492, 516, 534, 615, 645, 712, 820, 860, 890, 984, 1032, 1068, 1230, 1290, 1335, 1640, 1720, 1763, 1780, 2136, 2460, 2580, 2670, 3526, 3560, 3649, 3827, 4920, 5160, 5289, 5340, 7052, 7298, 7654, 8815, 10578, 10680, 10947, 11481, 14104, 14596, 15308, 17630, 18245, 19135, 21156, 21894, 22962, 26445, 29192, 30616, 35260, 36490, 38270, 42312, 43788, 45924, 52890, 54735, 57405, 70520, 72980, 76540, 87576, 91848, 105780, 109470, 114810, 145960, 153080, 156907, 211560, 218940, 229620, 313814, 437880, 459240, 470721, 627628, 784535, 941442, 1255256, 1569070, 1882884, 2353605, 3138140, 3765768, 4707210, 6276280, 9414420, 18828840]

約数ペア:

[(1, 18828840), (2, 9414420), (3, 6276280), (4, 4707210), (5, 3765768), (6, 3138140), (8, 2353605), (10, 1882884), (12, 1569070), (15, 1255256), (20, 941442), (24, 784535), (30, 627628), (40, 470721), (41, 459240), (43, 437880), (60, 313814), (82, 229620), (86, 218940), (89, 211560), (120, 156907), (123, 153080), (129, 145960), (164, 114810), (172, 109470), (178, 105780), (205, 91848), (215, 87576), (246, 76540), (258, 72980), (267, 70520), (328, 57405), (344, 54735), (356, 52890), (410, 45924), (430, 43788), (445, 42312), (492, 38270), (516, 36490), (534, 35260), (615, 30616), (645, 29192), (712, 26445), (820, 22962), (860, 21894), (890, 21156), (984, 19135), (1032, 18245), (1068, 17630), (1230, 15308), (1290, 14596), (1335, 14104), (1640, 11481), (1720, 10947), (1763, 10680), (1780, 10578), (2136, 8815), (2460, 7654), (2580, 7298), (2670, 7052), (3526, 5340), (3560, 5289), (3649, 5160), (3827, 4920)]