19279520

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1$

素因数の和:95

約数の個数: 144

約数和(自身を含む): 53125632

約数和(自身を除く): 33846112

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 23, 26, 31, 32, 40, 46, 52, 62, 65, 80, 92, 104, 115, 124, 130, 155, 160, 169, 184, 208, 230, 248, 260, 299, 310, 338, 368, 403, 416, 460, 496, 520, 598, 620, 676, 713, 736, 806, 845, 920, 992, 1040, 1196, 1240, 1352, 1426, 1495, 1612, 1690, 1840, 2015, 2080, 2392, 2480, 2704, 2852, 2990, 3224, 3380, 3565, 3680, 3887, 4030, 4784, 4960, 5239, 5408, 5704, 5980, 6448, 6760, 7130, 7774, 8060, 9269, 9568, 10478, 11408, 11960, 12896, 13520, 14260, 15548, 16120, 18538, 19435, 20956, 22816, 23920, 26195, 27040, 28520, 31096, 32240, 37076, 38870, 41912, 46345, 47840, 52390, 57040, 62192, 64480, 74152, 77740, 83824, 92690, 104780, 114080, 120497, 124384, 148304, 155480, 167648, 185380, 209560, 240994, 296608, 310960, 370760, 419120, 481988, 602485, 621920, 741520, 838240, 963976, 1204970, 1483040, 1927952, 2409940, 3855904, 4819880, 9639760, 19279520]

約数ペア:

[(1, 19279520), (2, 9639760), (4, 4819880), (5, 3855904), (8, 2409940), (10, 1927952), (13, 1483040), (16, 1204970), (20, 963976), (23, 838240), (26, 741520), (31, 621920), (32, 602485), (40, 481988), (46, 419120), (52, 370760), (62, 310960), (65, 296608), (80, 240994), (92, 209560), (104, 185380), (115, 167648), (124, 155480), (130, 148304), (155, 124384), (160, 120497), (169, 114080), (184, 104780), (208, 92690), (230, 83824), (248, 77740), (260, 74152), (299, 64480), (310, 62192), (338, 57040), (368, 52390), (403, 47840), (416, 46345), (460, 41912), (496, 38870), (520, 37076), (598, 32240), (620, 31096), (676, 28520), (713, 27040), (736, 26195), (806, 23920), (845, 22816), (920, 20956), (992, 19435), (1040, 18538), (1196, 16120), (1240, 15548), (1352, 14260), (1426, 13520), (1495, 12896), (1612, 11960), (1690, 11408), (1840, 10478), (2015, 9568), (2080, 9269), (2392, 8060), (2480, 7774), (2704, 7130), (2852, 6760), (2990, 6448), (3224, 5980), (3380, 5704), (3565, 5408), (3680, 5239), (3887, 4960), (4030, 4784)]