19613940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{233}}^1$

素因数の和:329

約数の個数: 96

約数和(自身を含む): 58496256

約数和(自身を除く): 38882316

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 23, 30, 46, 60, 61, 69, 92, 115, 122, 138, 183, 230, 233, 244, 276, 305, 345, 366, 460, 466, 610, 690, 699, 732, 915, 932, 1165, 1220, 1380, 1398, 1403, 1830, 2330, 2796, 2806, 3495, 3660, 4209, 4660, 5359, 5612, 6990, 7015, 8418, 10718, 13980, 14030, 14213, 16077, 16836, 21045, 21436, 26795, 28060, 28426, 32154, 42090, 42639, 53590, 56852, 64308, 71065, 80385, 84180, 85278, 107180, 142130, 160770, 170556, 213195, 284260, 321540, 326899, 426390, 653798, 852780, 980697, 1307596, 1634495, 1961394, 3268990, 3922788, 4903485, 6537980, 9806970, 19613940]

約数ペア:

[(1, 19613940), (2, 9806970), (3, 6537980), (4, 4903485), (5, 3922788), (6, 3268990), (10, 1961394), (12, 1634495), (15, 1307596), (20, 980697), (23, 852780), (30, 653798), (46, 426390), (60, 326899), (61, 321540), (69, 284260), (92, 213195), (115, 170556), (122, 160770), (138, 142130), (183, 107180), (230, 85278), (233, 84180), (244, 80385), (276, 71065), (305, 64308), (345, 56852), (366, 53590), (460, 42639), (466, 42090), (610, 32154), (690, 28426), (699, 28060), (732, 26795), (915, 21436), (932, 21045), (1165, 16836), (1220, 16077), (1380, 14213), (1398, 14030), (1403, 13980), (1830, 10718), (2330, 8418), (2796, 7015), (2806, 6990), (3495, 5612), (3660, 5359), (4209, 4660)]