28208016

素因数分解:

$2^4\times 3^2\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1$

素因数の和:205

約数の個数: 120

約数和(自身を含む): 83566080

約数和(自身を除く): 55358064

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 31, 36, 48, 62, 71, 72, 89, 93, 124, 142, 144, 178, 186, 213, 248, 267, 279, 284, 356, 372, 426, 496, 534, 558, 568, 639, 712, 744, 801, 852, 1068, 1116, 1136, 1278, 1424, 1488, 1602, 1704, 2136, 2201, 2232, 2556, 2759, 3204, 3408, 4272, 4402, 4464, 5112, 5518, 6319, 6408, 6603, 8277, 8804, 10224, 11036, 12638, 12816, 13206, 16554, 17608, 18957, 19809, 22072, 24831, 25276, 26412, 33108, 35216, 37914, 39618, 44144, 49662, 50552, 52824, 56871, 66216, 75828, 79236, 99324, 101104, 105648, 113742, 132432, 151656, 158472, 195889, 198648, 227484, 303312, 316944, 391778, 397296, 454968, 587667, 783556, 909936, 1175334, 1567112, 1763001, 2350668, 3134224, 3526002, 4701336, 7052004, 9402672, 14104008, 28208016]

約数ペア:

[(1, 28208016), (2, 14104008), (3, 9402672), (4, 7052004), (6, 4701336), (8, 3526002), (9, 3134224), (12, 2350668), (16, 1763001), (18, 1567112), (24, 1175334), (31, 909936), (36, 783556), (48, 587667), (62, 454968), (71, 397296), (72, 391778), (89, 316944), (93, 303312), (124, 227484), (142, 198648), (144, 195889), (178, 158472), (186, 151656), (213, 132432), (248, 113742), (267, 105648), (279, 101104), (284, 99324), (356, 79236), (372, 75828), (426, 66216), (496, 56871), (534, 52824), (558, 50552), (568, 49662), (639, 44144), (712, 39618), (744, 37914), (801, 35216), (852, 33108), (1068, 26412), (1116, 25276), (1136, 24831), (1278, 22072), (1424, 19809), (1488, 18957), (1602, 17608), (1704, 16554), (2136, 13206), (2201, 12816), (2232, 12638), (2556, 11036), (2759, 10224), (3204, 8804), (3408, 8277), (4272, 6603), (4402, 6408), (4464, 6319), (5112, 5518)]