78891900

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{499}}^1$

素因数の和:564

約数の個数: 144

約数和(自身を含む): 249984000

約数和(自身を除く): 171092100

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 25, 30, 31, 34, 50, 51, 60, 62, 68, 75, 85, 93, 100, 102, 124, 150, 155, 170, 186, 204, 255, 300, 310, 340, 372, 425, 465, 499, 510, 527, 620, 775, 850, 930, 998, 1020, 1054, 1275, 1497, 1550, 1581, 1700, 1860, 1996, 2108, 2325, 2495, 2550, 2635, 2994, 3100, 3162, 4650, 4990, 5100, 5270, 5988, 6324, 7485, 7905, 8483, 9300, 9980, 10540, 12475, 13175, 14970, 15469, 15810, 16966, 24950, 25449, 26350, 29940, 30938, 31620, 33932, 37425, 39525, 42415, 46407, 49900, 50898, 52700, 61876, 74850, 77345, 79050, 84830, 92814, 101796, 127245, 149700, 154690, 158100, 169660, 185628, 212075, 232035, 254490, 262973, 309380, 386725, 424150, 464070, 508980, 525946, 636225, 773450, 788919, 848300, 928140, 1051892, 1160175, 1272450, 1314865, 1546900, 1577838, 2320350, 2544900, 2629730, 3155676, 3944595, 4640700, 5259460, 6574325, 7889190, 13148650, 15778380, 19722975, 26297300, 39445950, 78891900]

約数ペア:

[(1, 78891900), (2, 39445950), (3, 26297300), (4, 19722975), (5, 15778380), (6, 13148650), (10, 7889190), (12, 6574325), (15, 5259460), (17, 4640700), (20, 3944595), (25, 3155676), (30, 2629730), (31, 2544900), (34, 2320350), (50, 1577838), (51, 1546900), (60, 1314865), (62, 1272450), (68, 1160175), (75, 1051892), (85, 928140), (93, 848300), (100, 788919), (102, 773450), (124, 636225), (150, 525946), (155, 508980), (170, 464070), (186, 424150), (204, 386725), (255, 309380), (300, 262973), (310, 254490), (340, 232035), (372, 212075), (425, 185628), (465, 169660), (499, 158100), (510, 154690), (527, 149700), (620, 127245), (775, 101796), (850, 92814), (930, 84830), (998, 79050), (1020, 77345), (1054, 74850), (1275, 61876), (1497, 52700), (1550, 50898), (1581, 49900), (1700, 46407), (1860, 42415), (1996, 39525), (2108, 37425), (2325, 33932), (2495, 31620), (2550, 30938), (2635, 29940), (2994, 26350), (3100, 25449), (3162, 24950), (4650, 16966), (4990, 15810), (5100, 15469), (5270, 14970), (5988, 13175), (6324, 12475), (7485, 10540), (7905, 9980), (8483, 9300)]