28406820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{461}}^1$

素因数の和:565

約数の個数: 96

約数和(自身を含む): 86929920

約数和(自身を除く): 58523100

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 79, 130, 156, 158, 195, 237, 260, 316, 390, 395, 461, 474, 780, 790, 922, 948, 1027, 1185, 1383, 1580, 1844, 2054, 2305, 2370, 2766, 3081, 4108, 4610, 4740, 5135, 5532, 5993, 6162, 6915, 9220, 10270, 11986, 12324, 13830, 15405, 17979, 20540, 23972, 27660, 29965, 30810, 35958, 36419, 59930, 61620, 71916, 72838, 89895, 109257, 119860, 145676, 179790, 182095, 218514, 359580, 364190, 437028, 473447, 546285, 728380, 946894, 1092570, 1420341, 1893788, 2185140, 2367235, 2840682, 4734470, 5681364, 7101705, 9468940, 14203410, 28406820]

約数ペア:

[(1, 28406820), (2, 14203410), (3, 9468940), (4, 7101705), (5, 5681364), (6, 4734470), (10, 2840682), (12, 2367235), (13, 2185140), (15, 1893788), (20, 1420341), (26, 1092570), (30, 946894), (39, 728380), (52, 546285), (60, 473447), (65, 437028), (78, 364190), (79, 359580), (130, 218514), (156, 182095), (158, 179790), (195, 145676), (237, 119860), (260, 109257), (316, 89895), (390, 72838), (395, 71916), (461, 61620), (474, 59930), (780, 36419), (790, 35958), (922, 30810), (948, 29965), (1027, 27660), (1185, 23972), (1383, 20540), (1580, 17979), (1844, 15405), (2054, 13830), (2305, 12324), (2370, 11986), (2766, 10270), (3081, 9220), (4108, 6915), (4610, 6162), (4740, 5993), (5135, 5532)]