81128100

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{331}}^1$

素因数の和:410

約数の個数: 144

約数和(自身を含む): 253594880

約数和(自身を除く): 172466780

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 25, 30, 38, 43, 50, 57, 60, 75, 76, 86, 95, 100, 114, 129, 150, 172, 190, 215, 228, 258, 285, 300, 331, 380, 430, 475, 516, 570, 645, 662, 817, 860, 950, 993, 1075, 1140, 1290, 1324, 1425, 1634, 1655, 1900, 1986, 2150, 2451, 2580, 2850, 3225, 3268, 3310, 3972, 4085, 4300, 4902, 4965, 5700, 6289, 6450, 6620, 8170, 8275, 9804, 9930, 12255, 12578, 12900, 14233, 16340, 16550, 18867, 19860, 20425, 24510, 24825, 25156, 28466, 31445, 33100, 37734, 40850, 42699, 49020, 49650, 56932, 61275, 62890, 71165, 75468, 81700, 85398, 94335, 99300, 122550, 125780, 142330, 157225, 170796, 188670, 213495, 245100, 270427, 284660, 314450, 355825, 377340, 426990, 471675, 540854, 628900, 711650, 811281, 853980, 943350, 1067475, 1081708, 1352135, 1423300, 1622562, 1886700, 2134950, 2704270, 3245124, 4056405, 4269900, 5408540, 6760675, 8112810, 13521350, 16225620, 20282025, 27042700, 40564050, 81128100]

約数ペア:

[(1, 81128100), (2, 40564050), (3, 27042700), (4, 20282025), (5, 16225620), (6, 13521350), (10, 8112810), (12, 6760675), (15, 5408540), (19, 4269900), (20, 4056405), (25, 3245124), (30, 2704270), (38, 2134950), (43, 1886700), (50, 1622562), (57, 1423300), (60, 1352135), (75, 1081708), (76, 1067475), (86, 943350), (95, 853980), (100, 811281), (114, 711650), (129, 628900), (150, 540854), (172, 471675), (190, 426990), (215, 377340), (228, 355825), (258, 314450), (285, 284660), (300, 270427), (331, 245100), (380, 213495), (430, 188670), (475, 170796), (516, 157225), (570, 142330), (645, 125780), (662, 122550), (817, 99300), (860, 94335), (950, 85398), (993, 81700), (1075, 75468), (1140, 71165), (1290, 62890), (1324, 61275), (1425, 56932), (1634, 49650), (1655, 49020), (1900, 42699), (1986, 40850), (2150, 37734), (2451, 33100), (2580, 31445), (2850, 28466), (3225, 25156), (3268, 24825), (3310, 24510), (3972, 20425), (4085, 19860), (4300, 18867), (4902, 16550), (4965, 16340), (5700, 14233), (6289, 12900), (6450, 12578), (6620, 12255), (8170, 9930), (8275, 9804)]