4025840

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{79}}^1$

素因数の和:119

約数の個数: 120

約数和(自身を含む): 11874240

約数和(自身を除く): 7848400

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 35, 40, 49, 52, 56, 65, 70, 79, 80, 91, 98, 104, 112, 130, 140, 158, 182, 196, 208, 245, 260, 280, 316, 364, 392, 395, 455, 490, 520, 553, 560, 632, 637, 728, 784, 790, 910, 980, 1027, 1040, 1106, 1264, 1274, 1456, 1580, 1820, 1960, 2054, 2212, 2548, 2765, 3160, 3185, 3640, 3871, 3920, 4108, 4424, 5096, 5135, 5530, 6320, 6370, 7189, 7280, 7742, 8216, 8848, 10192, 10270, 11060, 12740, 14378, 15484, 16432, 19355, 20540, 22120, 25480, 28756, 30968, 35945, 38710, 41080, 44240, 50323, 50960, 57512, 61936, 71890, 77420, 82160, 100646, 115024, 143780, 154840, 201292, 251615, 287560, 309680, 402584, 503230, 575120, 805168, 1006460, 2012920, 4025840]

約数ペア:

[(1, 4025840), (2, 2012920), (4, 1006460), (5, 805168), (7, 575120), (8, 503230), (10, 402584), (13, 309680), (14, 287560), (16, 251615), (20, 201292), (26, 154840), (28, 143780), (35, 115024), (40, 100646), (49, 82160), (52, 77420), (56, 71890), (65, 61936), (70, 57512), (79, 50960), (80, 50323), (91, 44240), (98, 41080), (104, 38710), (112, 35945), (130, 30968), (140, 28756), (158, 25480), (182, 22120), (196, 20540), (208, 19355), (245, 16432), (260, 15484), (280, 14378), (316, 12740), (364, 11060), (392, 10270), (395, 10192), (455, 8848), (490, 8216), (520, 7742), (553, 7280), (560, 7189), (632, 6370), (637, 6320), (728, 5530), (784, 5135), (790, 5096), (910, 4424), (980, 4108), (1027, 3920), (1040, 3871), (1106, 3640), (1264, 3185), (1274, 3160), (1456, 2765), (1580, 2548), (1820, 2212), (1960, 2054)]