28023240

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{457}}^1$

素因数の和:551

約数の個数: 128

約数和(自身を含む): 97608960

約数和(自身を除く): 69585720

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, 73, 84, 105, 120, 140, 146, 168, 210, 219, 280, 292, 365, 420, 438, 457, 511, 584, 730, 840, 876, 914, 1022, 1095, 1371, 1460, 1533, 1752, 1828, 2044, 2190, 2285, 2555, 2742, 2920, 3066, 3199, 3656, 4088, 4380, 4570, 5110, 5484, 6132, 6398, 6855, 7665, 8760, 9140, 9597, 10220, 10968, 12264, 12796, 13710, 15330, 15995, 18280, 19194, 20440, 25592, 27420, 30660, 31990, 33361, 38388, 47985, 54840, 61320, 63980, 66722, 76776, 95970, 100083, 127960, 133444, 166805, 191940, 200166, 233527, 266888, 333610, 383880, 400332, 467054, 500415, 667220, 700581, 800664, 934108, 1000830, 1167635, 1334440, 1401162, 1868216, 2001660, 2335270, 2802324, 3502905, 4003320, 4670540, 5604648, 7005810, 9341080, 14011620, 28023240]

約数ペア:

[(1, 28023240), (2, 14011620), (3, 9341080), (4, 7005810), (5, 5604648), (6, 4670540), (7, 4003320), (8, 3502905), (10, 2802324), (12, 2335270), (14, 2001660), (15, 1868216), (20, 1401162), (21, 1334440), (24, 1167635), (28, 1000830), (30, 934108), (35, 800664), (40, 700581), (42, 667220), (56, 500415), (60, 467054), (70, 400332), (73, 383880), (84, 333610), (105, 266888), (120, 233527), (140, 200166), (146, 191940), (168, 166805), (210, 133444), (219, 127960), (280, 100083), (292, 95970), (365, 76776), (420, 66722), (438, 63980), (457, 61320), (511, 54840), (584, 47985), (730, 38388), (840, 33361), (876, 31990), (914, 30660), (1022, 27420), (1095, 25592), (1371, 20440), (1460, 19194), (1533, 18280), (1752, 15995), (1828, 15330), (2044, 13710), (2190, 12796), (2285, 12264), (2555, 10968), (2742, 10220), (2920, 9597), (3066, 9140), (3199, 8760), (3656, 7665), (4088, 6855), (4380, 6398), (4570, 6132), (5110, 5484)]