400774980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^2\times {\mathrm{18503}}^1$

素因数の和:18553

約数の個数: 72

約数和(自身を含む): 1184404032

約数和(自身を除く): 783629052

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 38, 57, 60, 76, 95, 114, 190, 228, 285, 361, 380, 570, 722, 1083, 1140, 1444, 1805, 2166, 3610, 4332, 5415, 7220, 10830, 18503, 21660, 37006, 55509, 74012, 92515, 111018, 185030, 222036, 277545, 351557, 370060, 555090, 703114, 1054671, 1110180, 1406228, 1757785, 2109342, 3515570, 4218684, 5273355, 6679583, 7031140, 10546710, 13359166, 20038749, 21093420, 26718332, 33397915, 40077498, 66795830, 80154996, 100193745, 133591660, 200387490, 400774980]

約数ペア:

[(1, 400774980), (2, 200387490), (3, 133591660), (4, 100193745), (5, 80154996), (6, 66795830), (10, 40077498), (12, 33397915), (15, 26718332), (19, 21093420), (20, 20038749), (30, 13359166), (38, 10546710), (57, 7031140), (60, 6679583), (76, 5273355), (95, 4218684), (114, 3515570), (190, 2109342), (228, 1757785), (285, 1406228), (361, 1110180), (380, 1054671), (570, 703114), (722, 555090), (1083, 370060), (1140, 351557), (1444, 277545), (1805, 222036), (2166, 185030), (3610, 111018), (4332, 92515), (5415, 74012), (7220, 55509), (10830, 37006), (18503, 21660)]