1640952020

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{167}}^1\times {\mathrm{521}}^1$

素因数の和:761

約数の個数: 96

約数和(自身を含む): 3712697856

約数和(自身を除く): 2071745836

約数列:

[1, 2, 4, 5, 10, 20, 23, 41, 46, 82, 92, 115, 164, 167, 205, 230, 334, 410, 460, 521, 668, 820, 835, 943, 1042, 1670, 1886, 2084, 2605, 3340, 3772, 3841, 4715, 5210, 6847, 7682, 9430, 10420, 11983, 13694, 15364, 18860, 19205, 21361, 23966, 27388, 34235, 38410, 42722, 47932, 59915, 68470, 76820, 85444, 87007, 106805, 119830, 136940, 157481, 174014, 213610, 239660, 314962, 348028, 427220, 435035, 491303, 629924, 787405, 870070, 982606, 1574810, 1740140, 1965212, 2001161, 2456515, 3149620, 3567287, 4002322, 4913030, 7134574, 8004644, 9826060, 10005805, 14269148, 17836435, 20011610, 35672870, 40023220, 71345740, 82047601, 164095202, 328190404, 410238005, 820476010, 1640952020]

約数ペア:

[(1, 1640952020), (2, 820476010), (4, 410238005), (5, 328190404), (10, 164095202), (20, 82047601), (23, 71345740), (41, 40023220), (46, 35672870), (82, 20011610), (92, 17836435), (115, 14269148), (164, 10005805), (167, 9826060), (205, 8004644), (230, 7134574), (334, 4913030), (410, 4002322), (460, 3567287), (521, 3149620), (668, 2456515), (820, 2001161), (835, 1965212), (943, 1740140), (1042, 1574810), (1670, 982606), (1886, 870070), (2084, 787405), (2605, 629924), (3340, 491303), (3772, 435035), (3841, 427220), (4715, 348028), (5210, 314962), (6847, 239660), (7682, 213610), (9430, 174014), (10420, 157481), (11983, 136940), (13694, 119830), (15364, 106805), (18860, 87007), (19205, 85444), (21361, 76820), (23966, 68470), (27388, 59915), (34235, 47932), (38410, 42722)]