28402140

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{2801}}^1$

素因数の和:2839

約数の個数: 72

約数和(自身を含む): 86144688

約数和(自身を除く): 57742548

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 169, 195, 260, 338, 390, 507, 676, 780, 845, 1014, 1690, 2028, 2535, 2801, 3380, 5070, 5602, 8403, 10140, 11204, 14005, 16806, 28010, 33612, 36413, 42015, 56020, 72826, 84030, 109239, 145652, 168060, 182065, 218478, 364130, 436956, 473369, 546195, 728260, 946738, 1092390, 1420107, 1893476, 2184780, 2366845, 2840214, 4733690, 5680428, 7100535, 9467380, 14201070, 28402140]

約数ペア:

[(1, 28402140), (2, 14201070), (3, 9467380), (4, 7100535), (5, 5680428), (6, 4733690), (10, 2840214), (12, 2366845), (13, 2184780), (15, 1893476), (20, 1420107), (26, 1092390), (30, 946738), (39, 728260), (52, 546195), (60, 473369), (65, 436956), (78, 364130), (130, 218478), (156, 182065), (169, 168060), (195, 145652), (260, 109239), (338, 84030), (390, 72826), (507, 56020), (676, 42015), (780, 36413), (845, 33612), (1014, 28010), (1690, 16806), (2028, 14005), (2535, 11204), (2801, 10140), (3380, 8403), (5070, 5602)]