20265960

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1181}}^1$

素因数の和:1219

約数の個数: 128

約数和(自身を含む): 71487360

約数和(自身を除く): 51221400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 13, 15, 20, 22, 24, 26, 30, 33, 39, 40, 44, 52, 55, 60, 65, 66, 78, 88, 104, 110, 120, 130, 132, 143, 156, 165, 195, 220, 260, 264, 286, 312, 330, 390, 429, 440, 520, 572, 660, 715, 780, 858, 1144, 1181, 1320, 1430, 1560, 1716, 2145, 2362, 2860, 3432, 3543, 4290, 4724, 5720, 5905, 7086, 8580, 9448, 11810, 12991, 14172, 15353, 17160, 17715, 23620, 25982, 28344, 30706, 35430, 38973, 46059, 47240, 51964, 61412, 64955, 70860, 76765, 77946, 92118, 103928, 122824, 129910, 141720, 153530, 155892, 168883, 184236, 194865, 230295, 259820, 307060, 311784, 337766, 368472, 389730, 460590, 506649, 519640, 614120, 675532, 779460, 844415, 921180, 1013298, 1351064, 1558920, 1688830, 1842360, 2026596, 2533245, 3377660, 4053192, 5066490, 6755320, 10132980, 20265960]

約数ペア:

[(1, 20265960), (2, 10132980), (3, 6755320), (4, 5066490), (5, 4053192), (6, 3377660), (8, 2533245), (10, 2026596), (11, 1842360), (12, 1688830), (13, 1558920), (15, 1351064), (20, 1013298), (22, 921180), (24, 844415), (26, 779460), (30, 675532), (33, 614120), (39, 519640), (40, 506649), (44, 460590), (52, 389730), (55, 368472), (60, 337766), (65, 311784), (66, 307060), (78, 259820), (88, 230295), (104, 194865), (110, 184236), (120, 168883), (130, 155892), (132, 153530), (143, 141720), (156, 129910), (165, 122824), (195, 103928), (220, 92118), (260, 77946), (264, 76765), (286, 70860), (312, 64955), (330, 61412), (390, 51964), (429, 47240), (440, 46059), (520, 38973), (572, 35430), (660, 30706), (715, 28344), (780, 25982), (858, 23620), (1144, 17715), (1181, 17160), (1320, 15353), (1430, 14172), (1560, 12991), (1716, 11810), (2145, 9448), (2362, 8580), (2860, 7086), (3432, 5905), (3543, 5720), (4290, 4724)]