51139400

素因数分解:

$2^3\times 5^2\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{89}}^1$

素因数の和:148

約数の個数: 144

約数和(自身を含む): 137853900

約数和(自身を除く): 86714500

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 20, 25, 26, 34, 40, 50, 52, 65, 68, 85, 89, 100, 104, 130, 136, 169, 170, 178, 200, 221, 260, 325, 338, 340, 356, 425, 442, 445, 520, 650, 676, 680, 712, 845, 850, 884, 890, 1105, 1157, 1300, 1352, 1513, 1690, 1700, 1768, 1780, 2210, 2225, 2314, 2600, 2873, 3026, 3380, 3400, 3560, 4225, 4420, 4450, 4628, 5525, 5746, 5785, 6052, 6760, 7565, 8450, 8840, 8900, 9256, 11050, 11492, 11570, 12104, 14365, 15041, 15130, 16900, 17800, 19669, 22100, 22984, 23140, 28730, 28925, 30082, 30260, 33800, 37825, 39338, 44200, 46280, 57460, 57850, 60164, 60520, 71825, 75205, 75650, 78676, 98345, 114920, 115700, 120328, 143650, 150410, 151300, 157352, 196690, 231400, 255697, 287300, 300820, 302600, 376025, 393380, 491725, 511394, 574600, 601640, 752050, 786760, 983450, 1022788, 1278485, 1504100, 1966900, 2045576, 2556970, 3008200, 3933800, 5113940, 6392425, 10227880, 12784850, 25569700, 51139400]

約数ペア:

[(1, 51139400), (2, 25569700), (4, 12784850), (5, 10227880), (8, 6392425), (10, 5113940), (13, 3933800), (17, 3008200), (20, 2556970), (25, 2045576), (26, 1966900), (34, 1504100), (40, 1278485), (50, 1022788), (52, 983450), (65, 786760), (68, 752050), (85, 601640), (89, 574600), (100, 511394), (104, 491725), (130, 393380), (136, 376025), (169, 302600), (170, 300820), (178, 287300), (200, 255697), (221, 231400), (260, 196690), (325, 157352), (338, 151300), (340, 150410), (356, 143650), (425, 120328), (442, 115700), (445, 114920), (520, 98345), (650, 78676), (676, 75650), (680, 75205), (712, 71825), (845, 60520), (850, 60164), (884, 57850), (890, 57460), (1105, 46280), (1157, 44200), (1300, 39338), (1352, 37825), (1513, 33800), (1690, 30260), (1700, 30082), (1768, 28925), (1780, 28730), (2210, 23140), (2225, 22984), (2314, 22100), (2600, 19669), (2873, 17800), (3026, 16900), (3380, 15130), (3400, 15041), (3560, 14365), (4225, 12104), (4420, 11570), (4450, 11492), (4628, 11050), (5525, 9256), (5746, 8900), (5785, 8840), (6052, 8450), (6760, 7565)]