20138790

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{2339}}^1$

素因数の和:2397

約数の個数: 64

約数和(自身を含む): 56609280

約数和(自身を除く): 36470490

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 41, 42, 70, 82, 105, 123, 205, 210, 246, 287, 410, 574, 615, 861, 1230, 1435, 1722, 2339, 2870, 4305, 4678, 7017, 8610, 11695, 14034, 16373, 23390, 32746, 35085, 49119, 70170, 81865, 95899, 98238, 163730, 191798, 245595, 287697, 479495, 491190, 575394, 671293, 958990, 1342586, 1438485, 2013879, 2876970, 3356465, 4027758, 6712930, 10069395, 20138790]

約数ペア:

[(1, 20138790), (2, 10069395), (3, 6712930), (5, 4027758), (6, 3356465), (7, 2876970), (10, 2013879), (14, 1438485), (15, 1342586), (21, 958990), (30, 671293), (35, 575394), (41, 491190), (42, 479495), (70, 287697), (82, 245595), (105, 191798), (123, 163730), (205, 98238), (210, 95899), (246, 81865), (287, 70170), (410, 49119), (574, 35085), (615, 32746), (861, 23390), (1230, 16373), (1435, 14034), (1722, 11695), (2339, 8610), (2870, 7017), (4305, 4678)]