20803920

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{5099}}^1$

素因数の和:5132

約数の個数: 80

約数和(自身を含む): 68299200

約数和(自身を除く): 47495280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 34, 40, 48, 51, 60, 68, 80, 85, 102, 120, 136, 170, 204, 240, 255, 272, 340, 408, 510, 680, 816, 1020, 1360, 2040, 4080, 5099, 10198, 15297, 20396, 25495, 30594, 40792, 50990, 61188, 76485, 81584, 86683, 101980, 122376, 152970, 173366, 203960, 244752, 260049, 305940, 346732, 407920, 433415, 520098, 611880, 693464, 866830, 1040196, 1223760, 1300245, 1386928, 1733660, 2080392, 2600490, 3467320, 4160784, 5200980, 6934640, 10401960, 20803920]

約数ペア:

[(1, 20803920), (2, 10401960), (3, 6934640), (4, 5200980), (5, 4160784), (6, 3467320), (8, 2600490), (10, 2080392), (12, 1733660), (15, 1386928), (16, 1300245), (17, 1223760), (20, 1040196), (24, 866830), (30, 693464), (34, 611880), (40, 520098), (48, 433415), (51, 407920), (60, 346732), (68, 305940), (80, 260049), (85, 244752), (102, 203960), (120, 173366), (136, 152970), (170, 122376), (204, 101980), (240, 86683), (255, 81584), (272, 76485), (340, 61188), (408, 50990), (510, 40792), (680, 30594), (816, 25495), (1020, 20396), (1360, 15297), (2040, 10198), (4080, 5099)]