40899040

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{53}}^2$

素因数の和:141

約数の個数: 144

約数和(自身を含む): 121207968

約数和(自身を除く): 80308928

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 52, 53, 56, 65, 70, 80, 91, 104, 106, 112, 130, 140, 160, 182, 208, 212, 224, 260, 265, 280, 364, 371, 416, 424, 455, 520, 530, 560, 689, 728, 742, 848, 910, 1040, 1060, 1120, 1378, 1456, 1484, 1696, 1820, 1855, 2080, 2120, 2756, 2809, 2912, 2968, 3445, 3640, 3710, 4240, 4823, 5512, 5618, 5936, 6890, 7280, 7420, 8480, 9646, 11024, 11236, 11872, 13780, 14045, 14560, 14840, 19292, 19663, 22048, 22472, 24115, 27560, 28090, 29680, 36517, 38584, 39326, 44944, 48230, 55120, 56180, 59360, 73034, 77168, 78652, 89888, 96460, 98315, 110240, 112360, 146068, 154336, 157304, 182585, 192920, 196630, 224720, 255619, 292136, 314608, 365170, 385840, 393260, 449440, 511238, 584272, 629216, 730340, 771680, 786520, 1022476, 1168544, 1278095, 1460680, 1573040, 2044952, 2556190, 2921360, 3146080, 4089904, 5112380, 5842720, 8179808, 10224760, 20449520, 40899040]

約数ペア:

[(1, 40899040), (2, 20449520), (4, 10224760), (5, 8179808), (7, 5842720), (8, 5112380), (10, 4089904), (13, 3146080), (14, 2921360), (16, 2556190), (20, 2044952), (26, 1573040), (28, 1460680), (32, 1278095), (35, 1168544), (40, 1022476), (52, 786520), (53, 771680), (56, 730340), (65, 629216), (70, 584272), (80, 511238), (91, 449440), (104, 393260), (106, 385840), (112, 365170), (130, 314608), (140, 292136), (160, 255619), (182, 224720), (208, 196630), (212, 192920), (224, 182585), (260, 157304), (265, 154336), (280, 146068), (364, 112360), (371, 110240), (416, 98315), (424, 96460), (455, 89888), (520, 78652), (530, 77168), (560, 73034), (689, 59360), (728, 56180), (742, 55120), (848, 48230), (910, 44944), (1040, 39326), (1060, 38584), (1120, 36517), (1378, 29680), (1456, 28090), (1484, 27560), (1696, 24115), (1820, 22472), (1855, 22048), (2080, 19663), (2120, 19292), (2756, 14840), (2809, 14560), (2912, 14045), (2968, 13780), (3445, 11872), (3640, 11236), (3710, 11024), (4240, 9646), (4823, 8480), (5512, 7420), (5618, 7280), (5936, 6890)]