401099620

素因数分解:

$2^2\times 5^1\times {\mathrm{179}}^1\times {\mathrm{181}}^1\times {\mathrm{619}}^1$

素因数の和:988

約数の個数: 48

約数和(自身を含む): 853070400

約数和(自身を除く): 451970780

約数列:

[1, 2, 4, 5, 10, 20, 179, 181, 358, 362, 619, 716, 724, 895, 905, 1238, 1790, 1810, 2476, 3095, 3580, 3620, 6190, 12380, 32399, 64798, 110801, 112039, 129596, 161995, 221602, 224078, 323990, 443204, 448156, 554005, 560195, 647980, 1108010, 1120390, 2216020, 2240780, 20054981, 40109962, 80219924, 100274905, 200549810, 401099620]

約数ペア:

[(1, 401099620), (2, 200549810), (4, 100274905), (5, 80219924), (10, 40109962), (20, 20054981), (179, 2240780), (181, 2216020), (358, 1120390), (362, 1108010), (619, 647980), (716, 560195), (724, 554005), (895, 448156), (905, 443204), (1238, 323990), (1790, 224078), (1810, 221602), (2476, 161995), (3095, 129596), (3580, 112039), (3620, 110801), (6190, 64798), (12380, 32399)]