81034380

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{881}}^1$

素因数の和:976

約数の個数: 144

約数和(自身を含む): 285090624

約数和(自身を除く): 204056244

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 73, 84, 90, 105, 126, 140, 146, 180, 210, 219, 252, 292, 315, 365, 420, 438, 511, 630, 657, 730, 876, 881, 1022, 1095, 1260, 1314, 1460, 1533, 1762, 2044, 2190, 2555, 2628, 2643, 3066, 3285, 3524, 4380, 4405, 4599, 5110, 5286, 6132, 6167, 6570, 7665, 7929, 8810, 9198, 10220, 10572, 12334, 13140, 13215, 15330, 15858, 17620, 18396, 18501, 22995, 24668, 26430, 30660, 30835, 31716, 37002, 39645, 45990, 52860, 55503, 61670, 64313, 74004, 79290, 91980, 92505, 111006, 123340, 128626, 158580, 185010, 192939, 222012, 257252, 277515, 321565, 370020, 385878, 450191, 555030, 578817, 643130, 771756, 900382, 964695, 1110060, 1157634, 1286260, 1350573, 1800764, 1929390, 2250955, 2315268, 2701146, 2894085, 3858780, 4051719, 4501910, 5402292, 5788170, 6752865, 8103438, 9003820, 11576340, 13505730, 16206876, 20258595, 27011460, 40517190, 81034380]

約数ペア:

[(1, 81034380), (2, 40517190), (3, 27011460), (4, 20258595), (5, 16206876), (6, 13505730), (7, 11576340), (9, 9003820), (10, 8103438), (12, 6752865), (14, 5788170), (15, 5402292), (18, 4501910), (20, 4051719), (21, 3858780), (28, 2894085), (30, 2701146), (35, 2315268), (36, 2250955), (42, 1929390), (45, 1800764), (60, 1350573), (63, 1286260), (70, 1157634), (73, 1110060), (84, 964695), (90, 900382), (105, 771756), (126, 643130), (140, 578817), (146, 555030), (180, 450191), (210, 385878), (219, 370020), (252, 321565), (292, 277515), (315, 257252), (365, 222012), (420, 192939), (438, 185010), (511, 158580), (630, 128626), (657, 123340), (730, 111006), (876, 92505), (881, 91980), (1022, 79290), (1095, 74004), (1260, 64313), (1314, 61670), (1460, 55503), (1533, 52860), (1762, 45990), (2044, 39645), (2190, 37002), (2555, 31716), (2628, 30835), (2643, 30660), (3066, 26430), (3285, 24668), (3524, 22995), (4380, 18501), (4405, 18396), (4599, 17620), (5110, 15858), (5286, 15330), (6132, 13215), (6167, 13140), (6570, 12334), (7665, 10572), (7929, 10220), (8810, 9198)]