20716020

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{227}}^1$

素因数の和:271

約数の個数: 144

約数和(自身を含む): 70096320

約数和(自身を除く): 49380300

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 27, 30, 36, 39, 45, 52, 54, 60, 65, 78, 90, 108, 117, 130, 135, 156, 169, 180, 195, 227, 234, 260, 270, 338, 351, 390, 454, 468, 507, 540, 585, 676, 681, 702, 780, 845, 908, 1014, 1135, 1170, 1362, 1404, 1521, 1690, 1755, 2028, 2043, 2270, 2340, 2535, 2724, 2951, 3042, 3380, 3405, 3510, 4086, 4540, 4563, 5070, 5902, 6084, 6129, 6810, 7020, 7605, 8172, 8853, 9126, 10140, 10215, 11804, 12258, 13620, 14755, 15210, 17706, 18252, 20430, 22815, 24516, 26559, 29510, 30420, 30645, 35412, 38363, 40860, 44265, 45630, 53118, 59020, 61290, 76726, 79677, 88530, 91260, 106236, 115089, 122580, 132795, 153452, 159354, 177060, 191815, 230178, 265590, 318708, 345267, 383630, 398385, 460356, 531180, 575445, 690534, 767260, 796770, 1035801, 1150890, 1381068, 1593540, 1726335, 2071602, 2301780, 3452670, 4143204, 5179005, 6905340, 10358010, 20716020]

約数ペア:

[(1, 20716020), (2, 10358010), (3, 6905340), (4, 5179005), (5, 4143204), (6, 3452670), (9, 2301780), (10, 2071602), (12, 1726335), (13, 1593540), (15, 1381068), (18, 1150890), (20, 1035801), (26, 796770), (27, 767260), (30, 690534), (36, 575445), (39, 531180), (45, 460356), (52, 398385), (54, 383630), (60, 345267), (65, 318708), (78, 265590), (90, 230178), (108, 191815), (117, 177060), (130, 159354), (135, 153452), (156, 132795), (169, 122580), (180, 115089), (195, 106236), (227, 91260), (234, 88530), (260, 79677), (270, 76726), (338, 61290), (351, 59020), (390, 53118), (454, 45630), (468, 44265), (507, 40860), (540, 38363), (585, 35412), (676, 30645), (681, 30420), (702, 29510), (780, 26559), (845, 24516), (908, 22815), (1014, 20430), (1135, 18252), (1170, 17706), (1362, 15210), (1404, 14755), (1521, 13620), (1690, 12258), (1755, 11804), (2028, 10215), (2043, 10140), (2270, 9126), (2340, 8853), (2535, 8172), (2724, 7605), (2951, 7020), (3042, 6810), (3380, 6129), (3405, 6084), (3510, 5902), (4086, 5070), (4540, 4563)]