127631920

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{7219}}^1$

素因数の和:7262

約数の個数: 80

約数和(自身を含む): 338415840

約数和(自身を除く): 210783920

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 17, 20, 26, 34, 40, 52, 65, 68, 80, 85, 104, 130, 136, 170, 208, 221, 260, 272, 340, 442, 520, 680, 884, 1040, 1105, 1360, 1768, 2210, 3536, 4420, 7219, 8840, 14438, 17680, 28876, 36095, 57752, 72190, 93847, 115504, 122723, 144380, 187694, 245446, 288760, 375388, 469235, 490892, 577520, 613615, 750776, 938470, 981784, 1227230, 1501552, 1595399, 1876940, 1963568, 2454460, 3190798, 3753880, 4908920, 6381596, 7507760, 7976995, 9817840, 12763192, 15953990, 25526384, 31907980, 63815960, 127631920]

約数ペア:

[(1, 127631920), (2, 63815960), (4, 31907980), (5, 25526384), (8, 15953990), (10, 12763192), (13, 9817840), (16, 7976995), (17, 7507760), (20, 6381596), (26, 4908920), (34, 3753880), (40, 3190798), (52, 2454460), (65, 1963568), (68, 1876940), (80, 1595399), (85, 1501552), (104, 1227230), (130, 981784), (136, 938470), (170, 750776), (208, 613615), (221, 577520), (260, 490892), (272, 469235), (340, 375388), (442, 288760), (520, 245446), (680, 187694), (884, 144380), (1040, 122723), (1105, 115504), (1360, 93847), (1768, 72190), (2210, 57752), (3536, 36095), (4420, 28876), (7219, 17680), (8840, 14438)]