19644760

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{163}}^1$

素因数の和:328

約数の個数: 64

約数和(自身を含む): 46759680

約数和(自身を除く): 27114920

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 131, 163, 184, 230, 262, 326, 460, 524, 652, 655, 815, 920, 1048, 1304, 1310, 1630, 2620, 3013, 3260, 3749, 5240, 6026, 6520, 7498, 12052, 14996, 15065, 18745, 21353, 24104, 29992, 30130, 37490, 42706, 60260, 74980, 85412, 106765, 120520, 149960, 170824, 213530, 427060, 491119, 854120, 982238, 1964476, 2455595, 3928952, 4911190, 9822380, 19644760]

約数ペア:

[(1, 19644760), (2, 9822380), (4, 4911190), (5, 3928952), (8, 2455595), (10, 1964476), (20, 982238), (23, 854120), (40, 491119), (46, 427060), (92, 213530), (115, 170824), (131, 149960), (163, 120520), (184, 106765), (230, 85412), (262, 74980), (326, 60260), (460, 42706), (524, 37490), (652, 30130), (655, 29992), (815, 24104), (920, 21353), (1048, 18745), (1304, 15065), (1310, 14996), (1630, 12052), (2620, 7498), (3013, 6520), (3260, 6026), (3749, 5240)]