18811100

素因数分解:

$2^2\times 5^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{349}}^1$

素因数の和:388

約数の個数: 108

約数和(自身を含む): 51949800

約数和(自身を除く): 33138700

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 25, 28, 35, 44, 49, 50, 55, 70, 77, 98, 100, 110, 140, 154, 175, 196, 220, 245, 275, 308, 349, 350, 385, 490, 539, 550, 698, 700, 770, 980, 1078, 1100, 1225, 1396, 1540, 1745, 1925, 2156, 2443, 2450, 2695, 3490, 3839, 3850, 4886, 4900, 5390, 6980, 7678, 7700, 8725, 9772, 10780, 12215, 13475, 15356, 17101, 17450, 19195, 24430, 26873, 26950, 34202, 34900, 38390, 48860, 53746, 53900, 61075, 68404, 76780, 85505, 95975, 107492, 122150, 134365, 171010, 188111, 191950, 244300, 268730, 342020, 376222, 383900, 427525, 537460, 671825, 752444, 855050, 940555, 1343650, 1710100, 1881110, 2687300, 3762220, 4702775, 9405550, 18811100]

約数ペア:

[(1, 18811100), (2, 9405550), (4, 4702775), (5, 3762220), (7, 2687300), (10, 1881110), (11, 1710100), (14, 1343650), (20, 940555), (22, 855050), (25, 752444), (28, 671825), (35, 537460), (44, 427525), (49, 383900), (50, 376222), (55, 342020), (70, 268730), (77, 244300), (98, 191950), (100, 188111), (110, 171010), (140, 134365), (154, 122150), (175, 107492), (196, 95975), (220, 85505), (245, 76780), (275, 68404), (308, 61075), (349, 53900), (350, 53746), (385, 48860), (490, 38390), (539, 34900), (550, 34202), (698, 26950), (700, 26873), (770, 24430), (980, 19195), (1078, 17450), (1100, 17101), (1225, 15356), (1396, 13475), (1540, 12215), (1745, 10780), (1925, 9772), (2156, 8725), (2443, 7700), (2450, 7678), (2695, 6980), (3490, 5390), (3839, 4900), (3850, 4886)]