215779840

素因数分解:

$2^9\times 5^1\times {\mathrm{31}}^1\times {\mathrm{2719}}^1$

素因数の和:2773

約数の個数: 80

約数和(自身を含む): 534251520

約数和(自身を除く): 318471680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 512, 620, 640, 992, 1240, 1280, 1984, 2480, 2560, 2719, 3968, 4960, 5438, 7936, 9920, 10876, 13595, 15872, 19840, 21752, 27190, 39680, 43504, 54380, 79360, 84289, 87008, 108760, 168578, 174016, 217520, 337156, 348032, 421445, 435040, 674312, 696064, 842890, 870080, 1348624, 1392128, 1685780, 1740160, 2697248, 3371560, 3480320, 5394496, 6743120, 6960640, 10788992, 13486240, 21577984, 26972480, 43155968, 53944960, 107889920, 215779840]

約数ペア:

[(1, 215779840), (2, 107889920), (4, 53944960), (5, 43155968), (8, 26972480), (10, 21577984), (16, 13486240), (20, 10788992), (31, 6960640), (32, 6743120), (40, 5394496), (62, 3480320), (64, 3371560), (80, 2697248), (124, 1740160), (128, 1685780), (155, 1392128), (160, 1348624), (248, 870080), (256, 842890), (310, 696064), (320, 674312), (496, 435040), (512, 421445), (620, 348032), (640, 337156), (992, 217520), (1240, 174016), (1280, 168578), (1984, 108760), (2480, 87008), (2560, 84289), (2719, 79360), (3968, 54380), (4960, 43504), (5438, 39680), (7936, 27190), (9920, 21752), (10876, 19840), (13595, 15872)]