78881540

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{83}}^1$

素因数の和:213

約数の個数: 96

約数和(自身を含む): 183738240

約数和(自身を除く): 104856700

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 41, 61, 76, 82, 83, 95, 122, 164, 166, 190, 205, 244, 305, 332, 380, 410, 415, 610, 779, 820, 830, 1159, 1220, 1558, 1577, 1660, 2318, 2501, 3116, 3154, 3403, 3895, 4636, 5002, 5063, 5795, 6308, 6806, 7790, 7885, 10004, 10126, 11590, 12505, 13612, 15580, 15770, 17015, 20252, 23180, 25010, 25315, 31540, 34030, 47519, 50020, 50630, 64657, 68060, 95038, 96197, 101260, 129314, 190076, 192394, 207583, 237595, 258628, 323285, 384788, 415166, 475190, 480985, 646570, 830332, 950380, 961970, 1037915, 1293140, 1923940, 2075830, 3944077, 4151660, 7888154, 15776308, 19720385, 39440770, 78881540]

約数ペア:

[(1, 78881540), (2, 39440770), (4, 19720385), (5, 15776308), (10, 7888154), (19, 4151660), (20, 3944077), (38, 2075830), (41, 1923940), (61, 1293140), (76, 1037915), (82, 961970), (83, 950380), (95, 830332), (122, 646570), (164, 480985), (166, 475190), (190, 415166), (205, 384788), (244, 323285), (305, 258628), (332, 237595), (380, 207583), (410, 192394), (415, 190076), (610, 129314), (779, 101260), (820, 96197), (830, 95038), (1159, 68060), (1220, 64657), (1558, 50630), (1577, 50020), (1660, 47519), (2318, 34030), (2501, 31540), (3116, 25315), (3154, 25010), (3403, 23180), (3895, 20252), (4636, 17015), (5002, 15770), (5063, 15580), (5795, 13612), (6308, 12505), (6806, 11590), (7790, 10126), (7885, 10004)]