1617993640

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{419}}^1\times {\mathrm{5081}}^1$

素因数の和:5530

約数の個数: 64

約数和(自身を含む): 3841992000

約数和(自身を除く): 2223998360

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 419, 760, 838, 1676, 2095, 3352, 4190, 5081, 7961, 8380, 10162, 15922, 16760, 20324, 25405, 31844, 39805, 40648, 50810, 63688, 79610, 96539, 101620, 159220, 193078, 203240, 318440, 386156, 482695, 772312, 965390, 1930780, 2128939, 3861560, 4257878, 8515756, 10644695, 17031512, 21289390, 40449841, 42578780, 80899682, 85157560, 161799364, 202249205, 323598728, 404498410, 808996820, 1617993640]

約数ペア:

[(1, 1617993640), (2, 808996820), (4, 404498410), (5, 323598728), (8, 202249205), (10, 161799364), (19, 85157560), (20, 80899682), (38, 42578780), (40, 40449841), (76, 21289390), (95, 17031512), (152, 10644695), (190, 8515756), (380, 4257878), (419, 3861560), (760, 2128939), (838, 1930780), (1676, 965390), (2095, 772312), (3352, 482695), (4190, 386156), (5081, 318440), (7961, 203240), (8380, 193078), (10162, 159220), (15922, 101620), (16760, 96539), (20324, 79610), (25405, 63688), (31844, 50810), (39805, 40648)]