398082160

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{997}}^1$

素因数の和:1071

約数の個数: 160

約数和(自身を含む): 1140498432

約数和(自身を除く): 742416272

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 31, 35, 40, 46, 56, 62, 70, 80, 92, 112, 115, 124, 140, 155, 161, 184, 217, 230, 248, 280, 310, 322, 368, 434, 460, 496, 560, 620, 644, 713, 805, 868, 920, 997, 1085, 1240, 1288, 1426, 1610, 1736, 1840, 1994, 2170, 2480, 2576, 2852, 3220, 3472, 3565, 3988, 4340, 4985, 4991, 5704, 6440, 6979, 7130, 7976, 8680, 9970, 9982, 11408, 12880, 13958, 14260, 15952, 17360, 19940, 19964, 22931, 24955, 27916, 28520, 30907, 34895, 39880, 39928, 45862, 49910, 55832, 57040, 61814, 69790, 79760, 79856, 91724, 99820, 111664, 114655, 123628, 139580, 154535, 160517, 183448, 199640, 216349, 229310, 247256, 279160, 309070, 321034, 366896, 399280, 432698, 458620, 494512, 558320, 618140, 642068, 710861, 802585, 865396, 917240, 1081745, 1236280, 1284136, 1421722, 1605170, 1730792, 1834480, 2163490, 2472560, 2568272, 2843444, 3210340, 3461584, 3554305, 4326980, 4976027, 5686888, 6420680, 7108610, 8653960, 9952054, 11373776, 12841360, 14217220, 17307920, 19904108, 24880135, 28434440, 39808216, 49760270, 56868880, 79616432, 99520540, 199041080, 398082160]

約数ペア:

[(1, 398082160), (2, 199041080), (4, 99520540), (5, 79616432), (7, 56868880), (8, 49760270), (10, 39808216), (14, 28434440), (16, 24880135), (20, 19904108), (23, 17307920), (28, 14217220), (31, 12841360), (35, 11373776), (40, 9952054), (46, 8653960), (56, 7108610), (62, 6420680), (70, 5686888), (80, 4976027), (92, 4326980), (112, 3554305), (115, 3461584), (124, 3210340), (140, 2843444), (155, 2568272), (161, 2472560), (184, 2163490), (217, 1834480), (230, 1730792), (248, 1605170), (280, 1421722), (310, 1284136), (322, 1236280), (368, 1081745), (434, 917240), (460, 865396), (496, 802585), (560, 710861), (620, 642068), (644, 618140), (713, 558320), (805, 494512), (868, 458620), (920, 432698), (997, 399280), (1085, 366896), (1240, 321034), (1288, 309070), (1426, 279160), (1610, 247256), (1736, 229310), (1840, 216349), (1994, 199640), (2170, 183448), (2480, 160517), (2576, 154535), (2852, 139580), (3220, 123628), (3472, 114655), (3565, 111664), (3988, 99820), (4340, 91724), (4985, 79856), (4991, 79760), (5704, 69790), (6440, 61814), (6979, 57040), (7130, 55832), (7976, 49910), (8680, 45862), (9970, 39928), (9982, 39880), (11408, 34895), (12880, 30907), (13958, 28520), (14260, 27916), (15952, 24955), (17360, 22931), (19940, 19964)]