28538580

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{571}}^1$

素因数の和:614

約数の個数: 144

約数和(自身を含む): 98594496

約数和(自身を除く): 70055916

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, 571, 588, 595, 714, 735, 833, 980, 1020, 1142, 1190, 1428, 1470, 1666, 1713, 1785, 2284, 2380, 2499, 2855, 2940, 3332, 3426, 3570, 3997, 4165, 4998, 5710, 6852, 7140, 7994, 8330, 8565, 9707, 9996, 11420, 11991, 12495, 15988, 16660, 17130, 19414, 19985, 23982, 24990, 27979, 29121, 34260, 38828, 39970, 47964, 48535, 49980, 55958, 58242, 59955, 67949, 79940, 83937, 97070, 111916, 116484, 119910, 135898, 139895, 145605, 167874, 194140, 203847, 239820, 271796, 279790, 291210, 335748, 339745, 407694, 419685, 475643, 559580, 582420, 679490, 815388, 839370, 951286, 1019235, 1358980, 1426929, 1678740, 1902572, 2038470, 2378215, 2853858, 4076940, 4756430, 5707716, 7134645, 9512860, 14269290, 28538580]

約数ペア:

[(1, 28538580), (2, 14269290), (3, 9512860), (4, 7134645), (5, 5707716), (6, 4756430), (7, 4076940), (10, 2853858), (12, 2378215), (14, 2038470), (15, 1902572), (17, 1678740), (20, 1426929), (21, 1358980), (28, 1019235), (30, 951286), (34, 839370), (35, 815388), (42, 679490), (49, 582420), (51, 559580), (60, 475643), (68, 419685), (70, 407694), (84, 339745), (85, 335748), (98, 291210), (102, 279790), (105, 271796), (119, 239820), (140, 203847), (147, 194140), (170, 167874), (196, 145605), (204, 139895), (210, 135898), (238, 119910), (245, 116484), (255, 111916), (294, 97070), (340, 83937), (357, 79940), (420, 67949), (476, 59955), (490, 58242), (510, 55958), (571, 49980), (588, 48535), (595, 47964), (714, 39970), (735, 38828), (833, 34260), (980, 29121), (1020, 27979), (1142, 24990), (1190, 23982), (1428, 19985), (1470, 19414), (1666, 17130), (1713, 16660), (1785, 15988), (2284, 12495), (2380, 11991), (2499, 11420), (2855, 9996), (2940, 9707), (3332, 8565), (3426, 8330), (3570, 7994), (3997, 7140), (4165, 6852), (4998, 5710)]