321975920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{1091}}^1$

素因数の和:1159

約数の個数: 160

約数和(自身を含む): 935940096

約数和(自身を除く): 613964176

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 20, 28, 31, 34, 35, 40, 56, 62, 68, 70, 80, 85, 112, 119, 124, 136, 140, 155, 170, 217, 238, 248, 272, 280, 310, 340, 434, 476, 496, 527, 560, 595, 620, 680, 868, 952, 1054, 1085, 1091, 1190, 1240, 1360, 1736, 1904, 2108, 2170, 2182, 2380, 2480, 2635, 3472, 3689, 4216, 4340, 4364, 4760, 5270, 5455, 7378, 7637, 8432, 8680, 8728, 9520, 10540, 10910, 14756, 15274, 17360, 17456, 18445, 18547, 21080, 21820, 29512, 30548, 33821, 36890, 37094, 38185, 42160, 43640, 59024, 61096, 67642, 73780, 74188, 76370, 87280, 92735, 122192, 129829, 135284, 147560, 148376, 152740, 169105, 185470, 236747, 259658, 270568, 295120, 296752, 305480, 338210, 370940, 473494, 519316, 541136, 574957, 610960, 649145, 676420, 741880, 946988, 1038632, 1149914, 1183735, 1298290, 1352840, 1483760, 1893976, 2077264, 2299828, 2367470, 2596580, 2705680, 2874785, 3787952, 4024699, 4599656, 4734940, 5193160, 5749570, 8049398, 9199312, 9469880, 10386320, 11499140, 16098796, 18939760, 20123495, 22998280, 32197592, 40246990, 45996560, 64395184, 80493980, 160987960, 321975920]

約数ペア:

[(1, 321975920), (2, 160987960), (4, 80493980), (5, 64395184), (7, 45996560), (8, 40246990), (10, 32197592), (14, 22998280), (16, 20123495), (17, 18939760), (20, 16098796), (28, 11499140), (31, 10386320), (34, 9469880), (35, 9199312), (40, 8049398), (56, 5749570), (62, 5193160), (68, 4734940), (70, 4599656), (80, 4024699), (85, 3787952), (112, 2874785), (119, 2705680), (124, 2596580), (136, 2367470), (140, 2299828), (155, 2077264), (170, 1893976), (217, 1483760), (238, 1352840), (248, 1298290), (272, 1183735), (280, 1149914), (310, 1038632), (340, 946988), (434, 741880), (476, 676420), (496, 649145), (527, 610960), (560, 574957), (595, 541136), (620, 519316), (680, 473494), (868, 370940), (952, 338210), (1054, 305480), (1085, 296752), (1091, 295120), (1190, 270568), (1240, 259658), (1360, 236747), (1736, 185470), (1904, 169105), (2108, 152740), (2170, 148376), (2182, 147560), (2380, 135284), (2480, 129829), (2635, 122192), (3472, 92735), (3689, 87280), (4216, 76370), (4340, 74188), (4364, 73780), (4760, 67642), (5270, 61096), (5455, 59024), (7378, 43640), (7637, 42160), (8432, 38185), (8680, 37094), (8728, 36890), (9520, 33821), (10540, 30548), (10910, 29512), (14756, 21820), (15274, 21080), (17360, 18547), (17456, 18445)]