18513950

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{313}}^1$

素因数の和:358

約数の個数: 72

約数和(自身を含む): 42751728

約数和(自身を除く): 24237778

約数列:

[1, 2, 5, 7, 10, 13, 14, 25, 26, 35, 50, 65, 70, 91, 130, 169, 175, 182, 313, 325, 338, 350, 455, 626, 650, 845, 910, 1183, 1565, 1690, 2191, 2275, 2366, 3130, 4069, 4225, 4382, 4550, 5915, 7825, 8138, 8450, 10955, 11830, 15650, 20345, 21910, 28483, 29575, 40690, 52897, 54775, 56966, 59150, 101725, 105794, 109550, 142415, 203450, 264485, 284830, 370279, 528970, 712075, 740558, 1322425, 1424150, 1851395, 2644850, 3702790, 9256975, 18513950]

約数ペア:

[(1, 18513950), (2, 9256975), (5, 3702790), (7, 2644850), (10, 1851395), (13, 1424150), (14, 1322425), (25, 740558), (26, 712075), (35, 528970), (50, 370279), (65, 284830), (70, 264485), (91, 203450), (130, 142415), (169, 109550), (175, 105794), (182, 101725), (313, 59150), (325, 56966), (338, 54775), (350, 52897), (455, 40690), (626, 29575), (650, 28483), (845, 21910), (910, 20345), (1183, 15650), (1565, 11830), (1690, 10955), (2191, 8450), (2275, 8138), (2366, 7825), (3130, 5915), (4069, 4550), (4225, 4382)]