1688891940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{461}}^1\times {\mathrm{20353}}^1$

素因数の和:20829

約数の個数: 72

約数和(自身を含む): 5134337208

約数和(自身を除く): 3445445268

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 461, 922, 1383, 1844, 2305, 2766, 4149, 4610, 5532, 6915, 8298, 9220, 13830, 16596, 20353, 20745, 27660, 40706, 41490, 61059, 81412, 82980, 101765, 122118, 183177, 203530, 244236, 305295, 366354, 407060, 610590, 732708, 915885, 1221180, 1831770, 3663540, 9382733, 18765466, 28148199, 37530932, 46913665, 56296398, 84444597, 93827330, 112592796, 140740995, 168889194, 187654660, 281481990, 337778388, 422222985, 562963980, 844445970, 1688891940]

約数ペア:

[(1, 1688891940), (2, 844445970), (3, 562963980), (4, 422222985), (5, 337778388), (6, 281481990), (9, 187654660), (10, 168889194), (12, 140740995), (15, 112592796), (18, 93827330), (20, 84444597), (30, 56296398), (36, 46913665), (45, 37530932), (60, 28148199), (90, 18765466), (180, 9382733), (461, 3663540), (922, 1831770), (1383, 1221180), (1844, 915885), (2305, 732708), (2766, 610590), (4149, 407060), (4610, 366354), (5532, 305295), (6915, 244236), (8298, 203530), (9220, 183177), (13830, 122118), (16596, 101765), (20353, 82980), (20745, 81412), (27660, 61059), (40706, 41490)]