28909620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{6983}}^1$

素因数の和:7021

約数の個数: 72

約数和(自身を含む): 91518336

約数和(自身を除く): 62608716

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 30, 36, 45, 46, 60, 69, 90, 92, 115, 138, 180, 207, 230, 276, 345, 414, 460, 690, 828, 1035, 1380, 2070, 4140, 6983, 13966, 20949, 27932, 34915, 41898, 62847, 69830, 83796, 104745, 125694, 139660, 160609, 209490, 251388, 314235, 321218, 418980, 481827, 628470, 642436, 803045, 963654, 1256940, 1445481, 1606090, 1927308, 2409135, 2890962, 3212180, 4818270, 5781924, 7227405, 9636540, 14454810, 28909620]

約数ペア:

[(1, 28909620), (2, 14454810), (3, 9636540), (4, 7227405), (5, 5781924), (6, 4818270), (9, 3212180), (10, 2890962), (12, 2409135), (15, 1927308), (18, 1606090), (20, 1445481), (23, 1256940), (30, 963654), (36, 803045), (45, 642436), (46, 628470), (60, 481827), (69, 418980), (90, 321218), (92, 314235), (115, 251388), (138, 209490), (180, 160609), (207, 139660), (230, 125694), (276, 104745), (345, 83796), (414, 69830), (460, 62847), (690, 41898), (828, 34915), (1035, 27932), (1380, 20949), (2070, 13966), (4140, 6983)]