18392920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{163}}^1$

素因数の和:225

約数の個数: 128

約数和(自身を含む): 52899840

約数和(自身を除く): 34506920

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 31, 35, 40, 52, 56, 62, 65, 70, 91, 104, 124, 130, 140, 155, 163, 182, 217, 248, 260, 280, 310, 326, 364, 403, 434, 455, 520, 620, 652, 728, 806, 815, 868, 910, 1085, 1141, 1240, 1304, 1612, 1630, 1736, 1820, 2015, 2119, 2170, 2282, 2821, 3224, 3260, 3640, 4030, 4238, 4340, 4564, 5053, 5642, 5705, 6520, 8060, 8476, 8680, 9128, 10106, 10595, 11284, 11410, 14105, 14833, 16120, 16952, 20212, 21190, 22568, 22820, 25265, 28210, 29666, 35371, 40424, 42380, 45640, 50530, 56420, 59332, 65689, 70742, 74165, 84760, 101060, 112840, 118664, 131378, 141484, 148330, 176855, 202120, 262756, 282968, 296660, 328445, 353710, 459823, 525512, 593320, 656890, 707420, 919646, 1313780, 1414840, 1839292, 2299115, 2627560, 3678584, 4598230, 9196460, 18392920]

約数ペア:

[(1, 18392920), (2, 9196460), (4, 4598230), (5, 3678584), (7, 2627560), (8, 2299115), (10, 1839292), (13, 1414840), (14, 1313780), (20, 919646), (26, 707420), (28, 656890), (31, 593320), (35, 525512), (40, 459823), (52, 353710), (56, 328445), (62, 296660), (65, 282968), (70, 262756), (91, 202120), (104, 176855), (124, 148330), (130, 141484), (140, 131378), (155, 118664), (163, 112840), (182, 101060), (217, 84760), (248, 74165), (260, 70742), (280, 65689), (310, 59332), (326, 56420), (364, 50530), (403, 45640), (434, 42380), (455, 40424), (520, 35371), (620, 29666), (652, 28210), (728, 25265), (806, 22820), (815, 22568), (868, 21190), (910, 20212), (1085, 16952), (1141, 16120), (1240, 14833), (1304, 14105), (1612, 11410), (1630, 11284), (1736, 10595), (1820, 10106), (2015, 9128), (2119, 8680), (2170, 8476), (2282, 8060), (2821, 6520), (3224, 5705), (3260, 5642), (3640, 5053), (4030, 4564), (4238, 4340)]