260337920

素因数分解:

$2^8\times 5^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{239}}^1$

素因数の和:320

約数の個数: 144

約数和(自身を含む): 671086080

約数和(自身を除く): 410748160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 37, 40, 46, 64, 74, 80, 92, 115, 128, 148, 160, 184, 185, 230, 239, 256, 296, 320, 368, 370, 460, 478, 592, 640, 736, 740, 851, 920, 956, 1184, 1195, 1280, 1472, 1480, 1702, 1840, 1912, 2368, 2390, 2944, 2960, 3404, 3680, 3824, 4255, 4736, 4780, 5497, 5888, 5920, 6808, 7360, 7648, 8510, 8843, 9472, 9560, 10994, 11840, 13616, 14720, 15296, 17020, 17686, 19120, 21988, 23680, 27232, 27485, 29440, 30592, 34040, 35372, 38240, 43976, 44215, 47360, 54464, 54970, 61184, 68080, 70744, 76480, 87952, 88430, 108928, 109940, 136160, 141488, 152960, 175904, 176860, 203389, 217856, 219880, 272320, 282976, 305920, 351808, 353720, 406778, 439760, 544640, 565952, 703616, 707440, 813556, 879520, 1016945, 1089280, 1131904, 1407232, 1414880, 1627112, 1759040, 2033890, 2263808, 2829760, 3254224, 3518080, 4067780, 5659520, 6508448, 7036160, 8135560, 11319040, 13016896, 16271120, 26033792, 32542240, 52067584, 65084480, 130168960, 260337920]

約数ペア:

[(1, 260337920), (2, 130168960), (4, 65084480), (5, 52067584), (8, 32542240), (10, 26033792), (16, 16271120), (20, 13016896), (23, 11319040), (32, 8135560), (37, 7036160), (40, 6508448), (46, 5659520), (64, 4067780), (74, 3518080), (80, 3254224), (92, 2829760), (115, 2263808), (128, 2033890), (148, 1759040), (160, 1627112), (184, 1414880), (185, 1407232), (230, 1131904), (239, 1089280), (256, 1016945), (296, 879520), (320, 813556), (368, 707440), (370, 703616), (460, 565952), (478, 544640), (592, 439760), (640, 406778), (736, 353720), (740, 351808), (851, 305920), (920, 282976), (956, 272320), (1184, 219880), (1195, 217856), (1280, 203389), (1472, 176860), (1480, 175904), (1702, 152960), (1840, 141488), (1912, 136160), (2368, 109940), (2390, 108928), (2944, 88430), (2960, 87952), (3404, 76480), (3680, 70744), (3824, 68080), (4255, 61184), (4736, 54970), (4780, 54464), (5497, 47360), (5888, 44215), (5920, 43976), (6808, 38240), (7360, 35372), (7648, 34040), (8510, 30592), (8843, 29440), (9472, 27485), (9560, 27232), (10994, 23680), (11840, 21988), (13616, 19120), (14720, 17686), (15296, 17020)]