181128040

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^2\times {\mathrm{79}}^1$

素因数の和:207

約数の個数: 96

約数和(自身を含む): 436147200

約数和(自身を除く): 255019160

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 43, 62, 79, 86, 124, 155, 158, 172, 215, 248, 310, 316, 344, 395, 430, 620, 632, 790, 860, 1240, 1333, 1580, 1720, 1849, 2449, 2666, 3160, 3397, 3698, 4898, 5332, 6665, 6794, 7396, 9245, 9796, 10664, 12245, 13330, 13588, 14792, 16985, 18490, 19592, 24490, 26660, 27176, 33970, 36980, 48980, 53320, 57319, 67940, 73960, 97960, 105307, 114638, 135880, 146071, 210614, 229276, 286595, 292142, 421228, 458552, 526535, 573190, 584284, 730355, 842456, 1053070, 1146380, 1168568, 1460710, 2106140, 2292760, 2921420, 4212280, 4528201, 5842840, 9056402, 18112804, 22641005, 36225608, 45282010, 90564020, 181128040]

約数ペア:

[(1, 181128040), (2, 90564020), (4, 45282010), (5, 36225608), (8, 22641005), (10, 18112804), (20, 9056402), (31, 5842840), (40, 4528201), (43, 4212280), (62, 2921420), (79, 2292760), (86, 2106140), (124, 1460710), (155, 1168568), (158, 1146380), (172, 1053070), (215, 842456), (248, 730355), (310, 584284), (316, 573190), (344, 526535), (395, 458552), (430, 421228), (620, 292142), (632, 286595), (790, 229276), (860, 210614), (1240, 146071), (1333, 135880), (1580, 114638), (1720, 105307), (1849, 97960), (2449, 73960), (2666, 67940), (3160, 57319), (3397, 53320), (3698, 48980), (4898, 36980), (5332, 33970), (6665, 27176), (6794, 26660), (7396, 24490), (9245, 19592), (9796, 18490), (10664, 16985), (12245, 14792), (13330, 13588)]