20248020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{509}}^1$

素因数の和:554

約数の個数: 144

約数和(自身を含む): 70171920

約数和(自身を除く): 49923900

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 17, 18, 20, 26, 30, 34, 36, 39, 45, 51, 52, 60, 65, 68, 78, 85, 90, 102, 117, 130, 153, 156, 170, 180, 195, 204, 221, 234, 255, 260, 306, 340, 390, 442, 468, 509, 510, 585, 612, 663, 765, 780, 884, 1018, 1020, 1105, 1170, 1326, 1527, 1530, 1989, 2036, 2210, 2340, 2545, 2652, 3054, 3060, 3315, 3978, 4420, 4581, 5090, 6108, 6617, 6630, 7635, 7956, 8653, 9162, 9945, 10180, 13234, 13260, 15270, 17306, 18324, 19851, 19890, 22905, 25959, 26468, 30540, 33085, 34612, 39702, 39780, 43265, 45810, 51918, 59553, 66170, 77877, 79404, 86530, 91620, 99255, 103836, 112489, 119106, 129795, 132340, 155754, 173060, 198510, 224978, 238212, 259590, 297765, 311508, 337467, 389385, 397020, 449956, 519180, 562445, 595530, 674934, 778770, 1012401, 1124890, 1191060, 1349868, 1557540, 1687335, 2024802, 2249780, 3374670, 4049604, 5062005, 6749340, 10124010, 20248020]

約数ペア:

[(1, 20248020), (2, 10124010), (3, 6749340), (4, 5062005), (5, 4049604), (6, 3374670), (9, 2249780), (10, 2024802), (12, 1687335), (13, 1557540), (15, 1349868), (17, 1191060), (18, 1124890), (20, 1012401), (26, 778770), (30, 674934), (34, 595530), (36, 562445), (39, 519180), (45, 449956), (51, 397020), (52, 389385), (60, 337467), (65, 311508), (68, 297765), (78, 259590), (85, 238212), (90, 224978), (102, 198510), (117, 173060), (130, 155754), (153, 132340), (156, 129795), (170, 119106), (180, 112489), (195, 103836), (204, 99255), (221, 91620), (234, 86530), (255, 79404), (260, 77877), (306, 66170), (340, 59553), (390, 51918), (442, 45810), (468, 43265), (509, 39780), (510, 39702), (585, 34612), (612, 33085), (663, 30540), (765, 26468), (780, 25959), (884, 22905), (1018, 19890), (1020, 19851), (1105, 18324), (1170, 17306), (1326, 15270), (1527, 13260), (1530, 13234), (1989, 10180), (2036, 9945), (2210, 9162), (2340, 8653), (2545, 7956), (2652, 7635), (3054, 6630), (3060, 6617), (3315, 6108), (3978, 5090), (4420, 4581)]