381327280

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{179}}^1\times {\mathrm{859}}^1$

素因数の和:1082

約数の個数: 80

約数和(自身を含む): 921369600

約数和(自身を除く): 540042320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 179, 248, 310, 358, 496, 620, 716, 859, 895, 1240, 1432, 1718, 1790, 2480, 2864, 3436, 3580, 4295, 5549, 6872, 7160, 8590, 11098, 13744, 14320, 17180, 22196, 26629, 27745, 34360, 44392, 53258, 55490, 68720, 88784, 106516, 110980, 133145, 153761, 213032, 221960, 266290, 307522, 426064, 443920, 532580, 615044, 768805, 1065160, 1230088, 1537610, 2130320, 2460176, 3075220, 4766591, 6150440, 9533182, 12300880, 19066364, 23832955, 38132728, 47665910, 76265456, 95331820, 190663640, 381327280]

約数ペア:

[(1, 381327280), (2, 190663640), (4, 95331820), (5, 76265456), (8, 47665910), (10, 38132728), (16, 23832955), (20, 19066364), (31, 12300880), (40, 9533182), (62, 6150440), (80, 4766591), (124, 3075220), (155, 2460176), (179, 2130320), (248, 1537610), (310, 1230088), (358, 1065160), (496, 768805), (620, 615044), (716, 532580), (859, 443920), (895, 426064), (1240, 307522), (1432, 266290), (1718, 221960), (1790, 213032), (2480, 153761), (2864, 133145), (3436, 110980), (3580, 106516), (4295, 88784), (5549, 68720), (6872, 55490), (7160, 53258), (8590, 44392), (11098, 34360), (13744, 27745), (14320, 26629), (17180, 22196)]