19491712

素因数分解:

$2^7\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{89}}^1$

素因数の和:191

約数の個数: 64

約数和(自身を含む): 41310000

約数和(自身を除く): 21818288

約数列:

[1, 2, 4, 8, 16, 29, 32, 58, 59, 64, 89, 116, 118, 128, 178, 232, 236, 356, 464, 472, 712, 928, 944, 1424, 1711, 1856, 1888, 2581, 2848, 3422, 3712, 3776, 5162, 5251, 5696, 6844, 7552, 10324, 10502, 11392, 13688, 20648, 21004, 27376, 41296, 42008, 54752, 82592, 84016, 109504, 152279, 165184, 168032, 219008, 304558, 330368, 336064, 609116, 672128, 1218232, 2436464, 4872928, 9745856, 19491712]

約数ペア:

[(1, 19491712), (2, 9745856), (4, 4872928), (8, 2436464), (16, 1218232), (29, 672128), (32, 609116), (58, 336064), (59, 330368), (64, 304558), (89, 219008), (116, 168032), (118, 165184), (128, 152279), (178, 109504), (232, 84016), (236, 82592), (356, 54752), (464, 42008), (472, 41296), (712, 27376), (928, 21004), (944, 20648), (1424, 13688), (1711, 11392), (1856, 10502), (1888, 10324), (2581, 7552), (2848, 6844), (3422, 5696), (3712, 5251), (3776, 5162)]