20877796.000000000

素因数分解:

$2^2\times 3^1\times 5^4\times {\mathrm{139}}^1\times {\mathrm{149}}^1$

素因数の和:315

約数の個数: 120

約数和(自身を含む): 459228000

約数和(自身を除く): 303895500

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 75, 100, 125, 139, 149, 150, 250, 278, 298, 300, 375, 417, 447, 500, 556, 596, 625, 695, 745, 750, 834, 894, 1250, 1390, 1490, 1500, 1668, 1788, 1875, 2085, 2235, 2500, 2780, 2980, 3475, 3725, 3750, 4170, 4470, 6950, 7450, 7500, 8340, 8940, 10425, 11175, 13900, 14900, 17375, 18625, 20711, 20850, 22350, 34750, 37250, 41422, 41700, 44700, 52125, 55875, 62133, 69500, 74500, 82844, 86875, 93125, 103555, 104250, 111750, 124266, 173750, 186250, 207110, 208500, 223500, 248532, 260625, 279375, 310665, 347500, 372500, 414220, 517775, 521250, 558750, 621330, 1035550, 1042500, 1117500, 1242660, 1553325, 2071100, 2588875, 3106650, 5177750, 6213300, 7766625, 10355500, 12944375, 15533250, 25888750, 31066500, 38833125, 51777500, 77666250, 155332500]

約数ペア:

[(1, 155332500), (2, 77666250), (3, 51777500), (4, 38833125), (5, 31066500), (6, 25888750), (10, 15533250), (12, 12944375), (15, 10355500), (20, 7766625), (25, 6213300), (30, 5177750), (50, 3106650), (60, 2588875), (75, 2071100), (100, 1553325), (125, 1242660), (139, 1117500), (149, 1042500), (150, 1035550), (250, 621330), (278, 558750), (298, 521250), (300, 517775), (375, 414220), (417, 372500), (447, 347500), (500, 310665), (556, 279375), (596, 260625), (625, 248532), (695, 223500), (745, 208500), (750, 207110), (834, 186250), (894, 173750), (1250, 124266), (1390, 111750), (1490, 104250), (1500, 103555), (1668, 93125), (1788, 86875), (1875, 82844), (2085, 74500), (2235, 69500), (2500, 62133), (2780, 55875), (2980, 52125), (3475, 44700), (3725, 41700), (3750, 41422), (4170, 37250), (4470, 34750), (6950, 22350), (7450, 20850), (7500, 20711), (8340, 18625), (8940, 17375), (10425, 14900), (11175, 13900)]