218494640

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{30013}}^1$

素因数の和:30046

約数の個数: 80

約数和(自身を含む): 625251648

約数和(自身を除く): 406757008

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 35, 40, 52, 56, 65, 70, 80, 91, 104, 112, 130, 140, 182, 208, 260, 280, 364, 455, 520, 560, 728, 910, 1040, 1456, 1820, 3640, 7280, 30013, 60026, 120052, 150065, 210091, 240104, 300130, 390169, 420182, 480208, 600260, 780338, 840364, 1050455, 1200520, 1560676, 1680728, 1950845, 2100910, 2401040, 2731183, 3121352, 3361456, 3901690, 4201820, 5462366, 6242704, 7803380, 8403640, 10924732, 13655915, 15606760, 16807280, 21849464, 27311830, 31213520, 43698928, 54623660, 109247320, 218494640]

約数ペア:

[(1, 218494640), (2, 109247320), (4, 54623660), (5, 43698928), (7, 31213520), (8, 27311830), (10, 21849464), (13, 16807280), (14, 15606760), (16, 13655915), (20, 10924732), (26, 8403640), (28, 7803380), (35, 6242704), (40, 5462366), (52, 4201820), (56, 3901690), (65, 3361456), (70, 3121352), (80, 2731183), (91, 2401040), (104, 2100910), (112, 1950845), (130, 1680728), (140, 1560676), (182, 1200520), (208, 1050455), (260, 840364), (280, 780338), (364, 600260), (455, 480208), (520, 420182), (560, 390169), (728, 300130), (910, 240104), (1040, 210091), (1456, 150065), (1820, 120052), (3640, 60026), (7280, 30013)]