211454720

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{73}}^2$

素因数の和:198

約数の個数: 108

約数和(自身を含む): 530099136

約数和(自身を除く): 318644416

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 73, 80, 124, 128, 146, 155, 160, 248, 256, 292, 310, 320, 365, 496, 584, 620, 640, 730, 992, 1168, 1240, 1280, 1460, 1984, 2263, 2336, 2480, 2920, 3968, 4526, 4672, 4960, 5329, 5840, 7936, 9052, 9344, 9920, 10658, 11315, 11680, 18104, 18688, 19840, 21316, 22630, 23360, 26645, 36208, 39680, 42632, 45260, 46720, 53290, 72416, 85264, 90520, 93440, 106580, 144832, 165199, 170528, 181040, 213160, 289664, 330398, 341056, 362080, 426320, 579328, 660796, 682112, 724160, 825995, 852640, 1321592, 1364224, 1448320, 1651990, 1705280, 2643184, 2896640, 3303980, 3410560, 5286368, 6607960, 6821120, 10572736, 13215920, 21145472, 26431840, 42290944, 52863680, 105727360, 211454720]

約数ペア:

[(1, 211454720), (2, 105727360), (4, 52863680), (5, 42290944), (8, 26431840), (10, 21145472), (16, 13215920), (20, 10572736), (31, 6821120), (32, 6607960), (40, 5286368), (62, 3410560), (64, 3303980), (73, 2896640), (80, 2643184), (124, 1705280), (128, 1651990), (146, 1448320), (155, 1364224), (160, 1321592), (248, 852640), (256, 825995), (292, 724160), (310, 682112), (320, 660796), (365, 579328), (496, 426320), (584, 362080), (620, 341056), (640, 330398), (730, 289664), (992, 213160), (1168, 181040), (1240, 170528), (1280, 165199), (1460, 144832), (1984, 106580), (2263, 93440), (2336, 90520), (2480, 85264), (2920, 72416), (3968, 53290), (4526, 46720), (4672, 45260), (4960, 42632), (5329, 39680), (5840, 36208), (7936, 26645), (9052, 23360), (9344, 22630), (9920, 21316), (10658, 19840), (11315, 18688), (11680, 18104)]