19943460

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{1097}}^1$

素因数の和:1213

約数の個数: 72

約数和(自身を含む): 61149816

約数和(自身を除く): 41206356

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 101, 180, 202, 303, 404, 505, 606, 909, 1010, 1097, 1212, 1515, 1818, 2020, 2194, 3030, 3291, 3636, 4388, 4545, 5485, 6060, 6582, 9090, 9873, 10970, 13164, 16455, 18180, 19746, 21940, 32910, 39492, 49365, 65820, 98730, 110797, 197460, 221594, 332391, 443188, 553985, 664782, 997173, 1107970, 1329564, 1661955, 1994346, 2215940, 3323910, 3988692, 4985865, 6647820, 9971730, 19943460]

約数ペア:

[(1, 19943460), (2, 9971730), (3, 6647820), (4, 4985865), (5, 3988692), (6, 3323910), (9, 2215940), (10, 1994346), (12, 1661955), (15, 1329564), (18, 1107970), (20, 997173), (30, 664782), (36, 553985), (45, 443188), (60, 332391), (90, 221594), (101, 197460), (180, 110797), (202, 98730), (303, 65820), (404, 49365), (505, 39492), (606, 32910), (909, 21940), (1010, 19746), (1097, 18180), (1212, 16455), (1515, 13164), (1818, 10970), (2020, 9873), (2194, 9090), (3030, 6582), (3291, 6060), (3636, 5485), (4388, 4545)]