20257020

素因数分解:

$2^2\times 3^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{233}}^1$

素因数の和:281

約数の個数: 192

約数和(自身を含む): 75479040

約数和(自身を除く): 55222020

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 23, 27, 28, 30, 35, 36, 42, 45, 46, 54, 60, 63, 69, 70, 84, 90, 92, 105, 108, 115, 126, 135, 138, 140, 161, 180, 189, 207, 210, 230, 233, 252, 270, 276, 315, 322, 345, 378, 414, 420, 460, 466, 483, 540, 621, 630, 644, 690, 699, 756, 805, 828, 932, 945, 966, 1035, 1165, 1242, 1260, 1380, 1398, 1449, 1610, 1631, 1890, 1932, 2070, 2097, 2330, 2415, 2484, 2796, 2898, 3105, 3220, 3262, 3495, 3780, 4140, 4194, 4347, 4660, 4830, 4893, 5359, 5796, 6210, 6291, 6524, 6990, 7245, 8155, 8388, 8694, 9660, 9786, 10485, 10718, 12420, 12582, 13980, 14490, 14679, 16077, 16310, 17388, 19572, 20970, 21436, 21735, 24465, 25164, 26795, 28980, 29358, 31455, 32154, 32620, 37513, 41940, 43470, 44037, 48231, 48930, 53590, 58716, 62910, 64308, 73395, 75026, 80385, 86940, 88074, 96462, 97860, 107180, 112539, 125820, 144693, 146790, 150052, 160770, 176148, 187565, 192924, 220185, 225078, 241155, 289386, 293580, 321540, 337617, 375130, 440370, 450156, 482310, 562695, 578772, 675234, 723465, 750260, 880740, 964620, 1012851, 1125390, 1350468, 1446930, 1688085, 2025702, 2250780, 2893860, 3376170, 4051404, 5064255, 6752340, 10128510, 20257020]

約数ペア:

[(1, 20257020), (2, 10128510), (3, 6752340), (4, 5064255), (5, 4051404), (6, 3376170), (7, 2893860), (9, 2250780), (10, 2025702), (12, 1688085), (14, 1446930), (15, 1350468), (18, 1125390), (20, 1012851), (21, 964620), (23, 880740), (27, 750260), (28, 723465), (30, 675234), (35, 578772), (36, 562695), (42, 482310), (45, 450156), (46, 440370), (54, 375130), (60, 337617), (63, 321540), (69, 293580), (70, 289386), (84, 241155), (90, 225078), (92, 220185), (105, 192924), (108, 187565), (115, 176148), (126, 160770), (135, 150052), (138, 146790), (140, 144693), (161, 125820), (180, 112539), (189, 107180), (207, 97860), (210, 96462), (230, 88074), (233, 86940), (252, 80385), (270, 75026), (276, 73395), (315, 64308), (322, 62910), (345, 58716), (378, 53590), (414, 48930), (420, 48231), (460, 44037), (466, 43470), (483, 41940), (540, 37513), (621, 32620), (630, 32154), (644, 31455), (690, 29358), (699, 28980), (756, 26795), (805, 25164), (828, 24465), (932, 21735), (945, 21436), (966, 20970), (1035, 19572), (1165, 17388), (1242, 16310), (1260, 16077), (1380, 14679), (1398, 14490), (1449, 13980), (1610, 12582), (1631, 12420), (1890, 10718), (1932, 10485), (2070, 9786), (2097, 9660), (2330, 8694), (2415, 8388), (2484, 8155), (2796, 7245), (2898, 6990), (3105, 6524), (3220, 6291), (3262, 6210), (3495, 5796), (3780, 5359), (4140, 4893), (4194, 4830), (4347, 4660)]