77991900

素因数分解:

$2^2\times 3^1\times 5^2\times 7^1\times {\mathrm{37139}}^1$

素因数の和:37163

約数の個数: 72

約数和(自身を含む): 257900160

約数和(自身を除く): 179908260

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 25, 28, 30, 35, 42, 50, 60, 70, 75, 84, 100, 105, 140, 150, 175, 210, 300, 350, 420, 525, 700, 1050, 2100, 37139, 74278, 111417, 148556, 185695, 222834, 259973, 371390, 445668, 519946, 557085, 742780, 779919, 928475, 1039892, 1114170, 1299865, 1559838, 1856950, 2228340, 2599730, 2785425, 3119676, 3713900, 3899595, 5199460, 5570850, 6499325, 7799190, 11141700, 12998650, 15598380, 19497975, 25997300, 38995950, 77991900]

約数ペア:

[(1, 77991900), (2, 38995950), (3, 25997300), (4, 19497975), (5, 15598380), (6, 12998650), (7, 11141700), (10, 7799190), (12, 6499325), (14, 5570850), (15, 5199460), (20, 3899595), (21, 3713900), (25, 3119676), (28, 2785425), (30, 2599730), (35, 2228340), (42, 1856950), (50, 1559838), (60, 1299865), (70, 1114170), (75, 1039892), (84, 928475), (100, 779919), (105, 742780), (140, 557085), (150, 519946), (175, 445668), (210, 371390), (300, 259973), (350, 222834), (420, 185695), (525, 148556), (700, 111417), (1050, 74278), (2100, 37139)]