18989100

素因数分解:

$2^2\times 3^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{541}}^1$

素因数の和:577

約数の個数: 144

約数和(自身を含む): 65863840

約数和(自身を除く): 46874740

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 25, 26, 27, 30, 36, 39, 45, 50, 52, 54, 60, 65, 75, 78, 90, 100, 108, 117, 130, 135, 150, 156, 180, 195, 225, 234, 260, 270, 300, 325, 351, 390, 450, 468, 540, 541, 585, 650, 675, 702, 780, 900, 975, 1082, 1170, 1300, 1350, 1404, 1623, 1755, 1950, 2164, 2340, 2700, 2705, 2925, 3246, 3510, 3900, 4869, 5410, 5850, 6492, 7020, 7033, 8115, 8775, 9738, 10820, 11700, 13525, 14066, 14607, 16230, 17550, 19476, 21099, 24345, 27050, 28132, 29214, 32460, 35100, 35165, 40575, 42198, 48690, 54100, 58428, 63297, 70330, 73035, 81150, 84396, 97380, 105495, 121725, 126594, 140660, 146070, 162300, 175825, 189891, 210990, 243450, 253188, 292140, 316485, 351650, 365175, 379782, 421980, 486900, 527475, 632970, 703300, 730350, 759564, 949455, 1054950, 1265940, 1460700, 1582425, 1898910, 2109900, 3164850, 3797820, 4747275, 6329700, 9494550, 18989100]

約数ペア:

[(1, 18989100), (2, 9494550), (3, 6329700), (4, 4747275), (5, 3797820), (6, 3164850), (9, 2109900), (10, 1898910), (12, 1582425), (13, 1460700), (15, 1265940), (18, 1054950), (20, 949455), (25, 759564), (26, 730350), (27, 703300), (30, 632970), (36, 527475), (39, 486900), (45, 421980), (50, 379782), (52, 365175), (54, 351650), (60, 316485), (65, 292140), (75, 253188), (78, 243450), (90, 210990), (100, 189891), (108, 175825), (117, 162300), (130, 146070), (135, 140660), (150, 126594), (156, 121725), (180, 105495), (195, 97380), (225, 84396), (234, 81150), (260, 73035), (270, 70330), (300, 63297), (325, 58428), (351, 54100), (390, 48690), (450, 42198), (468, 40575), (540, 35165), (541, 35100), (585, 32460), (650, 29214), (675, 28132), (702, 27050), (780, 24345), (900, 21099), (975, 19476), (1082, 17550), (1170, 16230), (1300, 14607), (1350, 14066), (1404, 13525), (1623, 11700), (1755, 10820), (1950, 9738), (2164, 8775), (2340, 8115), (2700, 7033), (2705, 7020), (2925, 6492), (3246, 5850), (3510, 5410), (3900, 4869)]