81072420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{859}}^1$

素因数の和:906

約数の個数: 144

約数和(自身を含む): 269021760

約数和(自身を除く): 187949340

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 13, 15, 20, 22, 26, 30, 33, 39, 44, 52, 55, 60, 65, 66, 78, 110, 121, 130, 132, 143, 156, 165, 195, 220, 242, 260, 286, 330, 363, 390, 429, 484, 572, 605, 660, 715, 726, 780, 858, 859, 1210, 1430, 1452, 1573, 1716, 1718, 1815, 2145, 2420, 2577, 2860, 3146, 3436, 3630, 4290, 4295, 4719, 5154, 6292, 7260, 7865, 8580, 8590, 9438, 9449, 10308, 11167, 12885, 15730, 17180, 18876, 18898, 22334, 23595, 25770, 28347, 31460, 33501, 37796, 44668, 47190, 47245, 51540, 55835, 56694, 67002, 94380, 94490, 103939, 111670, 113388, 122837, 134004, 141735, 167505, 188980, 207878, 223340, 245674, 283470, 311817, 335010, 368511, 415756, 491348, 519695, 566940, 614185, 623634, 670020, 737022, 1039390, 1228370, 1247268, 1351207, 1474044, 1559085, 1842555, 2078780, 2456740, 2702414, 3118170, 3685110, 4053621, 5404828, 6236340, 6756035, 7370220, 8107242, 13512070, 16214484, 20268105, 27024140, 40536210, 81072420]

約数ペア:

[(1, 81072420), (2, 40536210), (3, 27024140), (4, 20268105), (5, 16214484), (6, 13512070), (10, 8107242), (11, 7370220), (12, 6756035), (13, 6236340), (15, 5404828), (20, 4053621), (22, 3685110), (26, 3118170), (30, 2702414), (33, 2456740), (39, 2078780), (44, 1842555), (52, 1559085), (55, 1474044), (60, 1351207), (65, 1247268), (66, 1228370), (78, 1039390), (110, 737022), (121, 670020), (130, 623634), (132, 614185), (143, 566940), (156, 519695), (165, 491348), (195, 415756), (220, 368511), (242, 335010), (260, 311817), (286, 283470), (330, 245674), (363, 223340), (390, 207878), (429, 188980), (484, 167505), (572, 141735), (605, 134004), (660, 122837), (715, 113388), (726, 111670), (780, 103939), (858, 94490), (859, 94380), (1210, 67002), (1430, 56694), (1452, 55835), (1573, 51540), (1716, 47245), (1718, 47190), (1815, 44668), (2145, 37796), (2420, 33501), (2577, 31460), (2860, 28347), (3146, 25770), (3436, 23595), (3630, 22334), (4290, 18898), (4295, 18876), (4719, 17180), (5154, 15730), (6292, 12885), (7260, 11167), (7865, 10308), (8580, 9449), (8590, 9438)]