81763840

素因数分解:

$2^9\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^2$

素因数の和:124

約数の個数: 120

約数和(自身を含む): 211515480

約数和(自身を除く): 129751640

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 41, 64, 76, 80, 82, 95, 128, 152, 160, 164, 190, 205, 256, 304, 320, 328, 380, 410, 512, 608, 640, 656, 760, 779, 820, 1216, 1280, 1312, 1520, 1558, 1640, 1681, 2432, 2560, 2624, 3040, 3116, 3280, 3362, 3895, 4864, 5248, 6080, 6232, 6560, 6724, 7790, 8405, 9728, 10496, 12160, 12464, 13120, 13448, 15580, 16810, 20992, 24320, 24928, 26240, 26896, 31160, 31939, 33620, 48640, 49856, 52480, 53792, 62320, 63878, 67240, 99712, 104960, 107584, 124640, 127756, 134480, 159695, 199424, 215168, 249280, 255512, 268960, 319390, 398848, 430336, 498560, 511024, 537920, 638780, 860672, 997120, 1022048, 1075840, 1277560, 1994240, 2044096, 2151680, 2555120, 4088192, 4303360, 5110240, 8176384, 10220480, 16352768, 20440960, 40881920, 81763840]

約数ペア:

[(1, 81763840), (2, 40881920), (4, 20440960), (5, 16352768), (8, 10220480), (10, 8176384), (16, 5110240), (19, 4303360), (20, 4088192), (32, 2555120), (38, 2151680), (40, 2044096), (41, 1994240), (64, 1277560), (76, 1075840), (80, 1022048), (82, 997120), (95, 860672), (128, 638780), (152, 537920), (160, 511024), (164, 498560), (190, 430336), (205, 398848), (256, 319390), (304, 268960), (320, 255512), (328, 249280), (380, 215168), (410, 199424), (512, 159695), (608, 134480), (640, 127756), (656, 124640), (760, 107584), (779, 104960), (820, 99712), (1216, 67240), (1280, 63878), (1312, 62320), (1520, 53792), (1558, 52480), (1640, 49856), (1681, 48640), (2432, 33620), (2560, 31939), (2624, 31160), (3040, 26896), (3116, 26240), (3280, 24928), (3362, 24320), (3895, 20992), (4864, 16810), (5248, 15580), (6080, 13448), (6232, 13120), (6560, 12464), (6724, 12160), (7790, 10496), (8405, 9728)]