20303640

素因数分解:

$2^3\times 3^2\times 5^1\times 7^2\times {\mathrm{1151}}^1$

素因数の和:1182

約数の個数: 144

約数和(自身を含む): 76826880

約数和(自身を除く): 56523240

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 49, 56, 60, 63, 70, 72, 84, 90, 98, 105, 120, 126, 140, 147, 168, 180, 196, 210, 245, 252, 280, 294, 315, 360, 392, 420, 441, 490, 504, 588, 630, 735, 840, 882, 980, 1151, 1176, 1260, 1470, 1764, 1960, 2205, 2302, 2520, 2940, 3453, 3528, 4410, 4604, 5755, 5880, 6906, 8057, 8820, 9208, 10359, 11510, 13812, 16114, 17265, 17640, 20718, 23020, 24171, 27624, 32228, 34530, 40285, 41436, 46040, 48342, 51795, 56399, 64456, 69060, 72513, 80570, 82872, 96684, 103590, 112798, 120855, 138120, 145026, 161140, 169197, 193368, 207180, 225596, 241710, 281995, 290052, 322280, 338394, 362565, 414360, 451192, 483420, 507591, 563990, 580104, 676788, 725130, 845985, 966840, 1015182, 1127980, 1353576, 1450260, 1691970, 2030364, 2255960, 2537955, 2900520, 3383940, 4060728, 5075910, 6767880, 10151820, 20303640]

約数ペア:

[(1, 20303640), (2, 10151820), (3, 6767880), (4, 5075910), (5, 4060728), (6, 3383940), (7, 2900520), (8, 2537955), (9, 2255960), (10, 2030364), (12, 1691970), (14, 1450260), (15, 1353576), (18, 1127980), (20, 1015182), (21, 966840), (24, 845985), (28, 725130), (30, 676788), (35, 580104), (36, 563990), (40, 507591), (42, 483420), (45, 451192), (49, 414360), (56, 362565), (60, 338394), (63, 322280), (70, 290052), (72, 281995), (84, 241710), (90, 225596), (98, 207180), (105, 193368), (120, 169197), (126, 161140), (140, 145026), (147, 138120), (168, 120855), (180, 112798), (196, 103590), (210, 96684), (245, 82872), (252, 80570), (280, 72513), (294, 69060), (315, 64456), (360, 56399), (392, 51795), (420, 48342), (441, 46040), (490, 41436), (504, 40285), (588, 34530), (630, 32228), (735, 27624), (840, 24171), (882, 23020), (980, 20718), (1151, 17640), (1176, 17265), (1260, 16114), (1470, 13812), (1764, 11510), (1960, 10359), (2205, 9208), (2302, 8820), (2520, 8057), (2940, 6906), (3453, 5880), (3528, 5755), (4410, 4604)]