70405020

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{787}}^1$

素因数の和:880

約数の個数: 144

約数和(自身を含む): 247822848

約数和(自身を除く): 177417828

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 71, 84, 90, 105, 126, 140, 142, 180, 210, 213, 252, 284, 315, 355, 420, 426, 497, 630, 639, 710, 787, 852, 994, 1065, 1260, 1278, 1420, 1491, 1574, 1988, 2130, 2361, 2485, 2556, 2982, 3148, 3195, 3935, 4260, 4473, 4722, 4970, 5509, 5964, 6390, 7083, 7455, 7870, 8946, 9444, 9940, 11018, 11805, 12780, 14166, 14910, 15740, 16527, 17892, 22036, 22365, 23610, 27545, 28332, 29820, 33054, 35415, 44730, 47220, 49581, 55090, 55877, 66108, 70830, 82635, 89460, 99162, 110180, 111754, 141660, 165270, 167631, 198324, 223508, 247905, 279385, 330540, 335262, 391139, 495810, 502893, 558770, 670524, 782278, 838155, 991620, 1005786, 1117540, 1173417, 1564556, 1676310, 1955695, 2011572, 2346834, 2514465, 3352620, 3520251, 3911390, 4693668, 5028930, 5867085, 7040502, 7822780, 10057860, 11734170, 14081004, 17601255, 23468340, 35202510, 70405020]

約数ペア:

[(1, 70405020), (2, 35202510), (3, 23468340), (4, 17601255), (5, 14081004), (6, 11734170), (7, 10057860), (9, 7822780), (10, 7040502), (12, 5867085), (14, 5028930), (15, 4693668), (18, 3911390), (20, 3520251), (21, 3352620), (28, 2514465), (30, 2346834), (35, 2011572), (36, 1955695), (42, 1676310), (45, 1564556), (60, 1173417), (63, 1117540), (70, 1005786), (71, 991620), (84, 838155), (90, 782278), (105, 670524), (126, 558770), (140, 502893), (142, 495810), (180, 391139), (210, 335262), (213, 330540), (252, 279385), (284, 247905), (315, 223508), (355, 198324), (420, 167631), (426, 165270), (497, 141660), (630, 111754), (639, 110180), (710, 99162), (787, 89460), (852, 82635), (994, 70830), (1065, 66108), (1260, 55877), (1278, 55090), (1420, 49581), (1491, 47220), (1574, 44730), (1988, 35415), (2130, 33054), (2361, 29820), (2485, 28332), (2556, 27545), (2982, 23610), (3148, 22365), (3195, 22036), (3935, 17892), (4260, 16527), (4473, 15740), (4722, 14910), (4970, 14166), (5509, 12780), (5964, 11805), (6390, 11018), (7083, 9940), (7455, 9444), (7870, 8946)]