20448259150

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{397}}^1\times {\mathrm{1319}}^1$

素因数の和:1810

約数の個数: 96

約数和(自身を含む): 42213726720

約数和(自身を除く): 21765467570

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 71, 110, 142, 275, 355, 397, 550, 710, 781, 794, 1319, 1562, 1775, 1985, 2638, 3550, 3905, 3970, 4367, 6595, 7810, 8734, 9925, 13190, 14509, 19525, 19850, 21835, 28187, 29018, 32975, 39050, 43670, 56374, 65950, 72545, 93649, 109175, 140935, 145090, 187298, 218350, 281870, 310057, 362725, 468245, 523643, 620114, 704675, 725450, 936490, 1030139, 1047286, 1409350, 1550285, 2060278, 2341225, 2618215, 3100570, 4682450, 5150695, 5236430, 5760073, 7751425, 10301390, 11520146, 13091075, 15502850, 25753475, 26182150, 28800365, 37178653, 51506950, 57600730, 74357306, 144001825, 185893265, 288003650, 371786530, 408965183, 817930366, 929466325, 1858932650, 2044825915, 4089651830, 10224129575, 20448259150]

約数ペア:

[(1, 20448259150), (2, 10224129575), (5, 4089651830), (10, 2044825915), (11, 1858932650), (22, 929466325), (25, 817930366), (50, 408965183), (55, 371786530), (71, 288003650), (110, 185893265), (142, 144001825), (275, 74357306), (355, 57600730), (397, 51506950), (550, 37178653), (710, 28800365), (781, 26182150), (794, 25753475), (1319, 15502850), (1562, 13091075), (1775, 11520146), (1985, 10301390), (2638, 7751425), (3550, 5760073), (3905, 5236430), (3970, 5150695), (4367, 4682450), (6595, 3100570), (7810, 2618215), (8734, 2341225), (9925, 2060278), (13190, 1550285), (14509, 1409350), (19525, 1047286), (19850, 1030139), (21835, 936490), (28187, 725450), (29018, 704675), (32975, 620114), (39050, 523643), (43670, 468245), (56374, 362725), (65950, 310057), (72545, 281870), (93649, 218350), (109175, 187298), (140935, 145090)]