1221285910

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{307}}^1\times {\mathrm{431}}^1$

素因数の和:829

約数の個数: 64

約数和(自身を含む): 2414168064

約数和(自身を除く): 1192882154

約数列:

[1, 2, 5, 10, 13, 26, 65, 71, 130, 142, 307, 355, 431, 614, 710, 862, 923, 1535, 1846, 2155, 3070, 3991, 4310, 4615, 5603, 7982, 9230, 11206, 19955, 21797, 28015, 30601, 39910, 43594, 56030, 61202, 108985, 132317, 153005, 217970, 264634, 283361, 306010, 397813, 566722, 661585, 795626, 1323170, 1416805, 1720121, 1989065, 2833610, 3440242, 3978130, 8600605, 9394507, 17201210, 18789014, 46972535, 93945070, 122128591, 244257182, 610642955, 1221285910]

約数ペア:

[(1, 1221285910), (2, 610642955), (5, 244257182), (10, 122128591), (13, 93945070), (26, 46972535), (65, 18789014), (71, 17201210), (130, 9394507), (142, 8600605), (307, 3978130), (355, 3440242), (431, 2833610), (614, 1989065), (710, 1720121), (862, 1416805), (923, 1323170), (1535, 795626), (1846, 661585), (2155, 566722), (3070, 397813), (3991, 306010), (4310, 283361), (4615, 264634), (5603, 217970), (7982, 153005), (9230, 132317), (11206, 108985), (19955, 61202), (21797, 56030), (28015, 43594), (30601, 39910)]