399631440

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{5569}}^1$

素因数の和:5621

約数の個数: 160

約数和(自身を含む): 1392410880

約数和(自身を除く): 992779440

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 23, 24, 26, 30, 39, 40, 46, 48, 52, 60, 65, 69, 78, 80, 92, 104, 115, 120, 130, 138, 156, 184, 195, 208, 230, 240, 260, 276, 299, 312, 345, 368, 390, 460, 520, 552, 598, 624, 690, 780, 897, 920, 1040, 1104, 1196, 1380, 1495, 1560, 1794, 1840, 2392, 2760, 2990, 3120, 3588, 4485, 4784, 5520, 5569, 5980, 7176, 8970, 11138, 11960, 14352, 16707, 17940, 22276, 23920, 27845, 33414, 35880, 44552, 55690, 66828, 71760, 72397, 83535, 89104, 111380, 128087, 133656, 144794, 167070, 217191, 222760, 256174, 267312, 289588, 334140, 361985, 384261, 434382, 445520, 512348, 579176, 640435, 668280, 723970, 768522, 868764, 1024696, 1085955, 1158352, 1280870, 1336560, 1447940, 1537044, 1665131, 1737528, 1921305, 2049392, 2171910, 2561740, 2895880, 3074088, 3330262, 3475056, 3842610, 4343820, 4995393, 5123480, 5791760, 6148176, 6660524, 7685220, 8325655, 8687640, 9990786, 10246960, 13321048, 15370440, 16651310, 17375280, 19981572, 24976965, 26642096, 30740880, 33302620, 39963144, 49953930, 66605240, 79926288, 99907860, 133210480, 199815720, 399631440]

約数ペア:

[(1, 399631440), (2, 199815720), (3, 133210480), (4, 99907860), (5, 79926288), (6, 66605240), (8, 49953930), (10, 39963144), (12, 33302620), (13, 30740880), (15, 26642096), (16, 24976965), (20, 19981572), (23, 17375280), (24, 16651310), (26, 15370440), (30, 13321048), (39, 10246960), (40, 9990786), (46, 8687640), (48, 8325655), (52, 7685220), (60, 6660524), (65, 6148176), (69, 5791760), (78, 5123480), (80, 4995393), (92, 4343820), (104, 3842610), (115, 3475056), (120, 3330262), (130, 3074088), (138, 2895880), (156, 2561740), (184, 2171910), (195, 2049392), (208, 1921305), (230, 1737528), (240, 1665131), (260, 1537044), (276, 1447940), (299, 1336560), (312, 1280870), (345, 1158352), (368, 1085955), (390, 1024696), (460, 868764), (520, 768522), (552, 723970), (598, 668280), (624, 640435), (690, 579176), (780, 512348), (897, 445520), (920, 434382), (1040, 384261), (1104, 361985), (1196, 334140), (1380, 289588), (1495, 267312), (1560, 256174), (1794, 222760), (1840, 217191), (2392, 167070), (2760, 144794), (2990, 133656), (3120, 128087), (3588, 111380), (4485, 89104), (4784, 83535), (5520, 72397), (5569, 71760), (5980, 66828), (7176, 55690), (8970, 44552), (11138, 35880), (11960, 33414), (14352, 27845), (16707, 23920), (17940, 22276)]