40881920

素因数分解:

$2^8\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^2$

素因数の和:122

約数の個数: 108

約数和(自身を含む): 105654360

約数和(自身を除く): 64772440

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, 608, 640, 656, 760, 779, 820, 1216, 1280, 1312, 1520, 1558, 1640, 1681, 2432, 2624, 3040, 3116, 3280, 3362, 3895, 4864, 5248, 6080, 6232, 6560, 6724, 7790, 8405, 10496, 12160, 12464, 13120, 13448, 15580, 16810, 24320, 24928, 26240, 26896, 31160, 31939, 33620, 49856, 52480, 53792, 62320, 63878, 67240, 99712, 107584, 124640, 127756, 134480, 159695, 199424, 215168, 249280, 255512, 268960, 319390, 430336, 498560, 511024, 537920, 638780, 997120, 1022048, 1075840, 1277560, 2044096, 2151680, 2555120, 4088192, 5110240, 8176384, 10220480, 20440960, 40881920]

約数ペア:

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