28138740

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{563}}^1$

素因数の和:606

約数の個数: 144

約数和(自身を含む): 97215552

約数和(自身を除く): 69076812

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 17, 20, 21, 28, 30, 34, 35, 42, 49, 51, 60, 68, 70, 84, 85, 98, 102, 105, 119, 140, 147, 170, 196, 204, 210, 238, 245, 255, 294, 340, 357, 420, 476, 490, 510, 563, 588, 595, 714, 735, 833, 980, 1020, 1126, 1190, 1428, 1470, 1666, 1689, 1785, 2252, 2380, 2499, 2815, 2940, 3332, 3378, 3570, 3941, 4165, 4998, 5630, 6756, 7140, 7882, 8330, 8445, 9571, 9996, 11260, 11823, 12495, 15764, 16660, 16890, 19142, 19705, 23646, 24990, 27587, 28713, 33780, 38284, 39410, 47292, 47855, 49980, 55174, 57426, 59115, 66997, 78820, 82761, 95710, 110348, 114852, 118230, 133994, 137935, 143565, 165522, 191420, 200991, 236460, 267988, 275870, 287130, 331044, 334985, 401982, 413805, 468979, 551740, 574260, 669970, 803964, 827610, 937958, 1004955, 1339940, 1406937, 1655220, 1875916, 2009910, 2344895, 2813874, 4019820, 4689790, 5627748, 7034685, 9379580, 14069370, 28138740]

約数ペア:

[(1, 28138740), (2, 14069370), (3, 9379580), (4, 7034685), (5, 5627748), (6, 4689790), (7, 4019820), (10, 2813874), (12, 2344895), (14, 2009910), (15, 1875916), (17, 1655220), (20, 1406937), (21, 1339940), (28, 1004955), (30, 937958), (34, 827610), (35, 803964), (42, 669970), (49, 574260), (51, 551740), (60, 468979), (68, 413805), (70, 401982), (84, 334985), (85, 331044), (98, 287130), (102, 275870), (105, 267988), (119, 236460), (140, 200991), (147, 191420), (170, 165522), (196, 143565), (204, 137935), (210, 133994), (238, 118230), (245, 114852), (255, 110348), (294, 95710), (340, 82761), (357, 78820), (420, 66997), (476, 59115), (490, 57426), (510, 55174), (563, 49980), (588, 47855), (595, 47292), (714, 39410), (735, 38284), (833, 33780), (980, 28713), (1020, 27587), (1126, 24990), (1190, 23646), (1428, 19705), (1470, 19142), (1666, 16890), (1689, 16660), (1785, 15764), (2252, 12495), (2380, 11823), (2499, 11260), (2815, 9996), (2940, 9571), (3332, 8445), (3378, 8330), (3570, 7882), (3941, 7140), (4165, 6756), (4998, 5630)]