19930240

素因数分解:

$2^7\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{149}}^1$

素因数の和:198

約数の個数: 128

約数和(自身を含む): 55080000

約数和(自身を除く): 35149760

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 19, 20, 22, 32, 38, 40, 44, 55, 64, 76, 80, 88, 95, 110, 128, 149, 152, 160, 176, 190, 209, 220, 298, 304, 320, 352, 380, 418, 440, 596, 608, 640, 704, 745, 760, 836, 880, 1045, 1192, 1216, 1408, 1490, 1520, 1639, 1672, 1760, 2090, 2384, 2432, 2831, 2980, 3040, 3278, 3344, 3520, 4180, 4768, 5662, 5960, 6080, 6556, 6688, 7040, 8195, 8360, 9536, 11324, 11920, 12160, 13112, 13376, 14155, 16390, 16720, 19072, 22648, 23840, 26224, 26752, 28310, 31141, 32780, 33440, 45296, 47680, 52448, 56620, 62282, 65560, 66880, 90592, 95360, 104896, 113240, 124564, 131120, 133760, 155705, 181184, 209792, 226480, 249128, 262240, 311410, 362368, 452960, 498256, 524480, 622820, 905920, 996512, 1048960, 1245640, 1811840, 1993024, 2491280, 3986048, 4982560, 9965120, 19930240]

約数ペア:

[(1, 19930240), (2, 9965120), (4, 4982560), (5, 3986048), (8, 2491280), (10, 1993024), (11, 1811840), (16, 1245640), (19, 1048960), (20, 996512), (22, 905920), (32, 622820), (38, 524480), (40, 498256), (44, 452960), (55, 362368), (64, 311410), (76, 262240), (80, 249128), (88, 226480), (95, 209792), (110, 181184), (128, 155705), (149, 133760), (152, 131120), (160, 124564), (176, 113240), (190, 104896), (209, 95360), (220, 90592), (298, 66880), (304, 65560), (320, 62282), (352, 56620), (380, 52448), (418, 47680), (440, 45296), (596, 33440), (608, 32780), (640, 31141), (704, 28310), (745, 26752), (760, 26224), (836, 23840), (880, 22648), (1045, 19072), (1192, 16720), (1216, 16390), (1408, 14155), (1490, 13376), (1520, 13112), (1639, 12160), (1672, 11920), (1760, 11324), (2090, 9536), (2384, 8360), (2432, 8195), (2831, 7040), (2980, 6688), (3040, 6556), (3278, 6080), (3344, 5960), (3520, 5662), (4180, 4768)]