178782890

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{109}}^1$

素因数の和:208

約数の個数: 128

約数和(自身を含む): 404490240

約数和(自身を除く): 225707350

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 31, 37, 55, 62, 65, 74, 109, 110, 130, 143, 155, 185, 218, 286, 310, 341, 370, 403, 407, 481, 545, 682, 715, 806, 814, 962, 1090, 1147, 1199, 1417, 1430, 1705, 2015, 2035, 2294, 2398, 2405, 2834, 3379, 3410, 4030, 4033, 4070, 4433, 4810, 5291, 5735, 5995, 6758, 7085, 8066, 8866, 10582, 11470, 11990, 12617, 14170, 14911, 15587, 16895, 20165, 22165, 25234, 26455, 29822, 31174, 33790, 37169, 40330, 43927, 44330, 44363, 52429, 52910, 63085, 74338, 74555, 77935, 87854, 88726, 104858, 125023, 126170, 149110, 155870, 164021, 185845, 219635, 221815, 250046, 262145, 328042, 371690, 439270, 443630, 483197, 524290, 576719, 625115, 820105, 966394, 1153438, 1250230, 1375253, 1625299, 1640210, 2415985, 2750506, 2883595, 3250598, 4831970, 5767190, 6876265, 8126495, 13752530, 16252990, 17878289, 35756578, 89391445, 178782890]

約数ペア:

[(1, 178782890), (2, 89391445), (5, 35756578), (10, 17878289), (11, 16252990), (13, 13752530), (22, 8126495), (26, 6876265), (31, 5767190), (37, 4831970), (55, 3250598), (62, 2883595), (65, 2750506), (74, 2415985), (109, 1640210), (110, 1625299), (130, 1375253), (143, 1250230), (155, 1153438), (185, 966394), (218, 820105), (286, 625115), (310, 576719), (341, 524290), (370, 483197), (403, 443630), (407, 439270), (481, 371690), (545, 328042), (682, 262145), (715, 250046), (806, 221815), (814, 219635), (962, 185845), (1090, 164021), (1147, 155870), (1199, 149110), (1417, 126170), (1430, 125023), (1705, 104858), (2015, 88726), (2035, 87854), (2294, 77935), (2398, 74555), (2405, 74338), (2834, 63085), (3379, 52910), (3410, 52429), (4030, 44363), (4033, 44330), (4070, 43927), (4433, 40330), (4810, 37169), (5291, 33790), (5735, 31174), (5995, 29822), (6758, 26455), (7085, 25234), (8066, 22165), (8866, 20165), (10582, 16895), (11470, 15587), (11990, 14911), (12617, 14170)]