305040

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1$

素因数の和:88

約数の個数: 80

約数和(自身を含む): 999936

約数和(自身を除く): 694896

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 40, 41, 48, 60, 62, 80, 82, 93, 120, 123, 124, 155, 164, 186, 205, 240, 246, 248, 310, 328, 372, 410, 465, 492, 496, 615, 620, 656, 744, 820, 930, 984, 1230, 1240, 1271, 1488, 1640, 1860, 1968, 2460, 2480, 2542, 3280, 3720, 3813, 4920, 5084, 6355, 7440, 7626, 9840, 10168, 12710, 15252, 19065, 20336, 25420, 30504, 38130, 50840, 61008, 76260, 101680, 152520, 305040]

約数ペア:

[(1, 305040), (2, 152520), (3, 101680), (4, 76260), (5, 61008), (6, 50840), (8, 38130), (10, 30504), (12, 25420), (15, 20336), (16, 19065), (20, 15252), (24, 12710), (30, 10168), (31, 9840), (40, 7626), (41, 7440), (48, 6355), (60, 5084), (62, 4920), (80, 3813), (82, 3720), (93, 3280), (120, 2542), (123, 2480), (124, 2460), (155, 1968), (164, 1860), (186, 1640), (205, 1488), (240, 1271), (246, 1240), (248, 1230), (310, 984), (328, 930), (372, 820), (410, 744), (465, 656), (492, 620), (496, 615)]