400320480

素因数分解:

$2^5\times 3^1\times 5^1\times 7^1\times {\mathrm{283}}^1\times {\mathrm{421}}^1$

素因数の和:729

約数の個数: 192

約数和(自身を含む): 1449681408

約数和(自身を除く): 1049360928

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 70, 80, 84, 96, 105, 112, 120, 140, 160, 168, 210, 224, 240, 280, 283, 336, 420, 421, 480, 560, 566, 672, 840, 842, 849, 1120, 1132, 1263, 1415, 1680, 1684, 1698, 1981, 2105, 2264, 2526, 2830, 2947, 3360, 3368, 3396, 3962, 4210, 4245, 4528, 5052, 5660, 5894, 5943, 6315, 6736, 6792, 7924, 8420, 8490, 8841, 9056, 9905, 10104, 11320, 11788, 11886, 12630, 13472, 13584, 14735, 15848, 16840, 16980, 17682, 19810, 20208, 22640, 23576, 23772, 25260, 27168, 29470, 29715, 31696, 33680, 33960, 35364, 39620, 40416, 44205, 45280, 47152, 47544, 50520, 58940, 59430, 63392, 67360, 67920, 70728, 79240, 88410, 94304, 95088, 101040, 117880, 118860, 119143, 135840, 141456, 158480, 176820, 190176, 202080, 235760, 237720, 238286, 282912, 316960, 353640, 357429, 471520, 475440, 476572, 595715, 707280, 714858, 834001, 950880, 953144, 1191430, 1414560, 1429716, 1668002, 1787145, 1906288, 2382860, 2502003, 2859432, 3336004, 3574290, 3812576, 4170005, 4765720, 5004006, 5718864, 6672008, 7148580, 8340010, 9531440, 10008012, 11437728, 12510015, 13344016, 14297160, 16680020, 19062880, 20016024, 25020030, 26688032, 28594320, 33360040, 40032048, 50040060, 57188640, 66720080, 80064096, 100080120, 133440160, 200160240, 400320480]

約数ペア:

[(1, 400320480), (2, 200160240), (3, 133440160), (4, 100080120), (5, 80064096), (6, 66720080), (7, 57188640), (8, 50040060), (10, 40032048), (12, 33360040), (14, 28594320), (15, 26688032), (16, 25020030), (20, 20016024), (21, 19062880), (24, 16680020), (28, 14297160), (30, 13344016), (32, 12510015), (35, 11437728), (40, 10008012), (42, 9531440), (48, 8340010), (56, 7148580), (60, 6672008), (70, 5718864), (80, 5004006), (84, 4765720), (96, 4170005), (105, 3812576), (112, 3574290), (120, 3336004), (140, 2859432), (160, 2502003), (168, 2382860), (210, 1906288), (224, 1787145), (240, 1668002), (280, 1429716), (283, 1414560), (336, 1191430), (420, 953144), (421, 950880), (480, 834001), (560, 714858), (566, 707280), (672, 595715), (840, 476572), (842, 475440), (849, 471520), (1120, 357429), (1132, 353640), (1263, 316960), (1415, 282912), (1680, 238286), (1684, 237720), (1698, 235760), (1981, 202080), (2105, 190176), (2264, 176820), (2526, 158480), (2830, 141456), (2947, 135840), (3360, 119143), (3368, 118860), (3396, 117880), (3962, 101040), (4210, 95088), (4245, 94304), (4528, 88410), (5052, 79240), (5660, 70728), (5894, 67920), (5943, 67360), (6315, 63392), (6736, 59430), (6792, 58940), (7924, 50520), (8420, 47544), (8490, 47152), (8841, 45280), (9056, 44205), (9905, 40416), (10104, 39620), (11320, 35364), (11788, 33960), (11886, 33680), (12630, 31696), (13472, 29715), (13584, 29470), (14735, 27168), (15848, 25260), (16840, 23772), (16980, 23576), (17682, 22640), (19810, 20208)]