215862920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1913}}^1$

素因数の和:1975

約数の個数: 128

約数和(自身を含む): 617379840

約数和(自身を除く): 401516920

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, 182, 217, 248, 260, 280, 310, 364, 403, 434, 455, 520, 620, 728, 806, 868, 910, 1085, 1240, 1612, 1736, 1820, 1913, 2015, 2170, 2821, 3224, 3640, 3826, 4030, 4340, 5642, 7652, 8060, 8680, 9565, 11284, 13391, 14105, 15304, 16120, 19130, 22568, 24869, 26782, 28210, 38260, 49738, 53564, 56420, 59303, 66955, 76520, 99476, 107128, 112840, 118606, 124345, 133910, 174083, 198952, 237212, 248690, 267820, 296515, 348166, 415121, 474424, 497380, 535640, 593030, 696332, 770939, 830242, 870415, 994760, 1186060, 1392664, 1541878, 1660484, 1740830, 2075605, 2372120, 3083756, 3320968, 3481660, 3854695, 4151210, 5396573, 6167512, 6963320, 7709390, 8302420, 10793146, 15418780, 16604840, 21586292, 26982865, 30837560, 43172584, 53965730, 107931460, 215862920]

約数ペア:

[(1, 215862920), (2, 107931460), (4, 53965730), (5, 43172584), (7, 30837560), (8, 26982865), (10, 21586292), (13, 16604840), (14, 15418780), (20, 10793146), (26, 8302420), (28, 7709390), (31, 6963320), (35, 6167512), (40, 5396573), (52, 4151210), (56, 3854695), (62, 3481660), (65, 3320968), (70, 3083756), (91, 2372120), (104, 2075605), (124, 1740830), (130, 1660484), (140, 1541878), (155, 1392664), (182, 1186060), (217, 994760), (248, 870415), (260, 830242), (280, 770939), (310, 696332), (364, 593030), (403, 535640), (434, 497380), (455, 474424), (520, 415121), (620, 348166), (728, 296515), (806, 267820), (868, 248690), (910, 237212), (1085, 198952), (1240, 174083), (1612, 133910), (1736, 124345), (1820, 118606), (1913, 112840), (2015, 107128), (2170, 99476), (2821, 76520), (3224, 66955), (3640, 59303), (3826, 56420), (4030, 53564), (4340, 49738), (5642, 38260), (7652, 28210), (8060, 26782), (8680, 24869), (9565, 22568), (11284, 19130), (13391, 16120), (14105, 15304)]