20046780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{659}}^1$

素因数の和:700

約数の個数: 108

約数和(自身を含む): 65945880

約数和(自身を除く): 45899100

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 169, 180, 195, 234, 260, 338, 390, 468, 507, 585, 659, 676, 780, 845, 1014, 1170, 1318, 1521, 1690, 1977, 2028, 2340, 2535, 2636, 3042, 3295, 3380, 3954, 5070, 5931, 6084, 6590, 7605, 7908, 8567, 9885, 10140, 11862, 13180, 15210, 17134, 19770, 23724, 25701, 29655, 30420, 34268, 39540, 42835, 51402, 59310, 77103, 85670, 102804, 111371, 118620, 128505, 154206, 171340, 222742, 257010, 308412, 334113, 385515, 445484, 514020, 556855, 668226, 771030, 1002339, 1113710, 1336452, 1542060, 1670565, 2004678, 2227420, 3341130, 4009356, 5011695, 6682260, 10023390, 20046780]

約数ペア:

[(1, 20046780), (2, 10023390), (3, 6682260), (4, 5011695), (5, 4009356), (6, 3341130), (9, 2227420), (10, 2004678), (12, 1670565), (13, 1542060), (15, 1336452), (18, 1113710), (20, 1002339), (26, 771030), (30, 668226), (36, 556855), (39, 514020), (45, 445484), (52, 385515), (60, 334113), (65, 308412), (78, 257010), (90, 222742), (117, 171340), (130, 154206), (156, 128505), (169, 118620), (180, 111371), (195, 102804), (234, 85670), (260, 77103), (338, 59310), (390, 51402), (468, 42835), (507, 39540), (585, 34268), (659, 30420), (676, 29655), (780, 25701), (845, 23724), (1014, 19770), (1170, 17134), (1318, 15210), (1521, 13180), (1690, 11862), (1977, 10140), (2028, 9885), (2340, 8567), (2535, 7908), (2636, 7605), (3042, 6590), (3295, 6084), (3380, 5931), (3954, 5070)]