19894716972

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{245723}}^1$

素因数の和:245919

約数の個数: 72

約数和(自身を含む): 54471113424

約数和(自身を除く): 34576396452

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 173, 234, 346, 468, 519, 692, 1038, 1557, 2076, 2249, 3114, 4498, 6228, 6747, 8996, 13494, 20241, 26988, 40482, 80964, 245723, 491446, 737169, 982892, 1474338, 2211507, 2948676, 3194399, 4423014, 6388798, 8846028, 9583197, 12777596, 19166394, 28749591, 38332788, 42510079, 57499182, 85020158, 114998364, 127530237, 170040316, 255060474, 382590711, 510120948, 552631027, 765181422, 1105262054, 1530362844, 1657893081, 2210524108, 3315786162, 4973679243, 6631572324, 9947358486, 19894716972]

約数ペア:

[(1, 19894716972), (2, 9947358486), (3, 6631572324), (4, 4973679243), (6, 3315786162), (9, 2210524108), (12, 1657893081), (13, 1530362844), (18, 1105262054), (26, 765181422), (36, 552631027), (39, 510120948), (52, 382590711), (78, 255060474), (117, 170040316), (156, 127530237), (173, 114998364), (234, 85020158), (346, 57499182), (468, 42510079), (519, 38332788), (692, 28749591), (1038, 19166394), (1557, 12777596), (2076, 9583197), (2249, 8846028), (3114, 6388798), (4498, 4423014), (6228, 3194399), (6747, 2948676), (8996, 2211507), (13494, 1474338), (20241, 982892), (26988, 737169), (40482, 491446), (80964, 245723)]