20456730

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{1709}}^1$

素因数の和:1748

約数の個数: 96

約数和(自身を含む): 64022400

約数和(自身を除く): 43565670

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 19, 21, 30, 35, 38, 42, 45, 57, 63, 70, 90, 95, 105, 114, 126, 133, 171, 190, 210, 266, 285, 315, 342, 399, 570, 630, 665, 798, 855, 1197, 1330, 1709, 1710, 1995, 2394, 3418, 3990, 5127, 5985, 8545, 10254, 11963, 11970, 15381, 17090, 23926, 25635, 30762, 32471, 35889, 51270, 59815, 64942, 71778, 76905, 97413, 107667, 119630, 153810, 162355, 179445, 194826, 215334, 227297, 292239, 324710, 358890, 454594, 487065, 538335, 584478, 681891, 974130, 1076670, 1136485, 1363782, 1461195, 2045673, 2272970, 2922390, 3409455, 4091346, 6818910, 10228365, 20456730]

約数ペア:

[(1, 20456730), (2, 10228365), (3, 6818910), (5, 4091346), (6, 3409455), (7, 2922390), (9, 2272970), (10, 2045673), (14, 1461195), (15, 1363782), (18, 1136485), (19, 1076670), (21, 974130), (30, 681891), (35, 584478), (38, 538335), (42, 487065), (45, 454594), (57, 358890), (63, 324710), (70, 292239), (90, 227297), (95, 215334), (105, 194826), (114, 179445), (126, 162355), (133, 153810), (171, 119630), (190, 107667), (210, 97413), (266, 76905), (285, 71778), (315, 64942), (342, 59815), (399, 51270), (570, 35889), (630, 32471), (665, 30762), (798, 25635), (855, 23926), (1197, 17090), (1330, 15381), (1709, 11970), (1710, 11963), (1995, 10254), (2394, 8545), (3418, 5985), (3990, 5127)]