69999720

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{167}}^1\times {\mathrm{499}}^1$

素因数の和:687

約数の個数: 128

約数和(自身を含む): 241920000

約数和(自身を除く): 171920280

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 167, 168, 210, 280, 334, 420, 499, 501, 668, 835, 840, 998, 1002, 1169, 1336, 1497, 1670, 1996, 2004, 2338, 2495, 2505, 2994, 3340, 3493, 3507, 3992, 4008, 4676, 4990, 5010, 5845, 5988, 6680, 6986, 7014, 7485, 9352, 9980, 10020, 10479, 11690, 11976, 13972, 14028, 14970, 17465, 17535, 19960, 20040, 20958, 23380, 27944, 28056, 29940, 34930, 35070, 41916, 46760, 52395, 59880, 69860, 70140, 83333, 83832, 104790, 139720, 140280, 166666, 209580, 249999, 333332, 416665, 419160, 499998, 583331, 666664, 833330, 999996, 1166662, 1249995, 1666660, 1749993, 1999992, 2333324, 2499990, 2916655, 3333320, 3499986, 4666648, 4999980, 5833310, 6999972, 8749965, 9999960, 11666620, 13999944, 17499930, 23333240, 34999860, 69999720]

約数ペア:

[(1, 69999720), (2, 34999860), (3, 23333240), (4, 17499930), (5, 13999944), (6, 11666620), (7, 9999960), (8, 8749965), (10, 6999972), (12, 5833310), (14, 4999980), (15, 4666648), (20, 3499986), (21, 3333320), (24, 2916655), (28, 2499990), (30, 2333324), (35, 1999992), (40, 1749993), (42, 1666660), (56, 1249995), (60, 1166662), (70, 999996), (84, 833330), (105, 666664), (120, 583331), (140, 499998), (167, 419160), (168, 416665), (210, 333332), (280, 249999), (334, 209580), (420, 166666), (499, 140280), (501, 139720), (668, 104790), (835, 83832), (840, 83333), (998, 70140), (1002, 69860), (1169, 59880), (1336, 52395), (1497, 46760), (1670, 41916), (1996, 35070), (2004, 34930), (2338, 29940), (2495, 28056), (2505, 27944), (2994, 23380), (3340, 20958), (3493, 20040), (3507, 19960), (3992, 17535), (4008, 17465), (4676, 14970), (4990, 14028), (5010, 13972), (5845, 11976), (5988, 11690), (6680, 10479), (6986, 10020), (7014, 9980), (7485, 9352)]