19402499480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{171947}}^1$

素因数の和:172009

約数の個数: 128

約数和(自身を含む): 55463546880

約数和(自身を除く): 36061047400

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, 2015, 2170, 2821, 3224, 3640, 4030, 4340, 5642, 8060, 8680, 11284, 14105, 16120, 22568, 28210, 56420, 112840, 171947, 343894, 687788, 859735, 1203629, 1375576, 1719470, 2235311, 2407258, 3438940, 4470622, 4814516, 5330357, 6018145, 6877880, 8941244, 9629032, 10660714, 11176555, 12036290, 15647177, 17882488, 21321428, 22353110, 24072580, 26651785, 31294354, 37312499, 42642856, 44706220, 48145160, 53303570, 62588708, 69294641, 74624998, 78235885, 89412440, 106607140, 125177416, 138589282, 149249996, 156471770, 186562495, 213214280, 277178564, 298499992, 312943540, 346473205, 373124990, 485062487, 554357128, 625887080, 692946410, 746249980, 970124974, 1385892820, 1492499960, 1940249948, 2425312435, 2771785640, 3880499896, 4850624870, 9701249740, 19402499480]

約数ペア:

[(1, 19402499480), (2, 9701249740), (4, 4850624870), (5, 3880499896), (7, 2771785640), (8, 2425312435), (10, 1940249948), (13, 1492499960), (14, 1385892820), (20, 970124974), (26, 746249980), (28, 692946410), (31, 625887080), (35, 554357128), (40, 485062487), (52, 373124990), (56, 346473205), (62, 312943540), (65, 298499992), (70, 277178564), (91, 213214280), (104, 186562495), (124, 156471770), (130, 149249996), (140, 138589282), (155, 125177416), (182, 106607140), (217, 89412440), (248, 78235885), (260, 74624998), (280, 69294641), (310, 62588708), (364, 53303570), (403, 48145160), (434, 44706220), (455, 42642856), (520, 37312499), (620, 31294354), (728, 26651785), (806, 24072580), (868, 22353110), (910, 21321428), (1085, 17882488), (1240, 15647177), (1612, 12036290), (1736, 11176555), (1820, 10660714), (2015, 9629032), (2170, 8941244), (2821, 6877880), (3224, 6018145), (3640, 5330357), (4030, 4814516), (4340, 4470622), (5642, 3438940), (8060, 2407258), (8680, 2235311), (11284, 1719470), (14105, 1375576), (16120, 1203629), (22568, 859735), (28210, 687788), (56420, 343894), (112840, 171947)]