19669340

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{41}}^1\times {\mathrm{83}}^1$

素因数の和:167

約数の個数: 72

約数和(自身を含む): 45490032

約数和(自身を除く): 25820692

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 41, 68, 82, 83, 85, 164, 166, 170, 205, 289, 332, 340, 410, 415, 578, 697, 820, 830, 1156, 1394, 1411, 1445, 1660, 2788, 2822, 2890, 3403, 3485, 5644, 5780, 6806, 6970, 7055, 11849, 13612, 13940, 14110, 17015, 23698, 23987, 28220, 34030, 47396, 47974, 57851, 59245, 68060, 95948, 115702, 118490, 119935, 231404, 236980, 239870, 289255, 479740, 578510, 983467, 1157020, 1966934, 3933868, 4917335, 9834670, 19669340]

約数ペア:

[(1, 19669340), (2, 9834670), (4, 4917335), (5, 3933868), (10, 1966934), (17, 1157020), (20, 983467), (34, 578510), (41, 479740), (68, 289255), (82, 239870), (83, 236980), (85, 231404), (164, 119935), (166, 118490), (170, 115702), (205, 95948), (289, 68060), (332, 59245), (340, 57851), (410, 47974), (415, 47396), (578, 34030), (697, 28220), (820, 23987), (830, 23698), (1156, 17015), (1394, 14110), (1411, 13940), (1445, 13612), (1660, 11849), (2788, 7055), (2822, 6970), (2890, 6806), (3403, 5780), (3485, 5644)]