217470890

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{593}}^1$

素因数の和:664

約数の個数: 96

約数和(自身を含む): 500898816

約数和(自身を除く): 283427926

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 31, 35, 62, 65, 70, 91, 130, 155, 169, 182, 217, 310, 338, 403, 434, 455, 593, 806, 845, 910, 1085, 1183, 1186, 1690, 2015, 2170, 2366, 2821, 2965, 4030, 4151, 5239, 5642, 5915, 5930, 7709, 8302, 10478, 11830, 14105, 15418, 18383, 20755, 26195, 28210, 36673, 36766, 38545, 41510, 52390, 53963, 73346, 77090, 91915, 100217, 107926, 128681, 183365, 183830, 200434, 238979, 257362, 269815, 366730, 477958, 501085, 539630, 643405, 701519, 1002170, 1194895, 1286810, 1403038, 1672853, 2389790, 3106727, 3345706, 3507595, 6213454, 7015190, 8364265, 15533635, 16728530, 21747089, 31067270, 43494178, 108735445, 217470890]

約数ペア:

[(1, 217470890), (2, 108735445), (5, 43494178), (7, 31067270), (10, 21747089), (13, 16728530), (14, 15533635), (26, 8364265), (31, 7015190), (35, 6213454), (62, 3507595), (65, 3345706), (70, 3106727), (91, 2389790), (130, 1672853), (155, 1403038), (169, 1286810), (182, 1194895), (217, 1002170), (310, 701519), (338, 643405), (403, 539630), (434, 501085), (455, 477958), (593, 366730), (806, 269815), (845, 257362), (910, 238979), (1085, 200434), (1183, 183830), (1186, 183365), (1690, 128681), (2015, 107926), (2170, 100217), (2366, 91915), (2821, 77090), (2965, 73346), (4030, 53963), (4151, 52390), (5239, 41510), (5642, 38545), (5915, 36766), (5930, 36673), (7709, 28210), (8302, 26195), (10478, 20755), (11830, 18383), (14105, 15418)]