81389100

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{509}}^1$

素因数の和:580

約数の個数: 144

約数和(自身を含む): 260295840

約数和(自身を除く): 178906740

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 25, 26, 30, 39, 41, 50, 52, 60, 65, 75, 78, 82, 100, 123, 130, 150, 156, 164, 195, 205, 246, 260, 300, 325, 390, 410, 492, 509, 533, 615, 650, 780, 820, 975, 1018, 1025, 1066, 1230, 1300, 1527, 1599, 1950, 2036, 2050, 2132, 2460, 2545, 2665, 3054, 3075, 3198, 3900, 4100, 5090, 5330, 6108, 6150, 6396, 6617, 7635, 7995, 10180, 10660, 12300, 12725, 13234, 13325, 15270, 15990, 19851, 20869, 25450, 26468, 26650, 30540, 31980, 33085, 38175, 39702, 39975, 41738, 50900, 53300, 62607, 66170, 76350, 79404, 79950, 83476, 99255, 104345, 125214, 132340, 152700, 159900, 165425, 198510, 208690, 250428, 271297, 313035, 330850, 397020, 417380, 496275, 521725, 542594, 626070, 661700, 813891, 992550, 1043450, 1085188, 1252140, 1356485, 1565175, 1627782, 1985100, 2086900, 2712970, 3130350, 3255564, 4069455, 5425940, 6260700, 6782425, 8138910, 13564850, 16277820, 20347275, 27129700, 40694550, 81389100]

約数ペア:

[(1, 81389100), (2, 40694550), (3, 27129700), (4, 20347275), (5, 16277820), (6, 13564850), (10, 8138910), (12, 6782425), (13, 6260700), (15, 5425940), (20, 4069455), (25, 3255564), (26, 3130350), (30, 2712970), (39, 2086900), (41, 1985100), (50, 1627782), (52, 1565175), (60, 1356485), (65, 1252140), (75, 1085188), (78, 1043450), (82, 992550), (100, 813891), (123, 661700), (130, 626070), (150, 542594), (156, 521725), (164, 496275), (195, 417380), (205, 397020), (246, 330850), (260, 313035), (300, 271297), (325, 250428), (390, 208690), (410, 198510), (492, 165425), (509, 159900), (533, 152700), (615, 132340), (650, 125214), (780, 104345), (820, 99255), (975, 83476), (1018, 79950), (1025, 79404), (1066, 76350), (1230, 66170), (1300, 62607), (1527, 53300), (1599, 50900), (1950, 41738), (2036, 39975), (2050, 39702), (2132, 38175), (2460, 33085), (2545, 31980), (2665, 30540), (3054, 26650), (3075, 26468), (3198, 25450), (3900, 20869), (4100, 19851), (5090, 15990), (5330, 15270), (6108, 13325), (6150, 13234), (6396, 12725), (6617, 12300), (7635, 10660), (7995, 10180)]