138707020

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{137}}^1$

素因数の和:271

約数の個数: 96

約数和(自身を含む): 320495616

約数和(自身を除く): 181788596

約数列:

[1, 2, 4, 5, 10, 20, 23, 31, 46, 62, 71, 92, 115, 124, 137, 142, 155, 230, 274, 284, 310, 355, 460, 548, 620, 685, 710, 713, 1370, 1420, 1426, 1633, 2201, 2740, 2852, 3151, 3266, 3565, 4247, 4402, 6302, 6532, 7130, 8165, 8494, 8804, 9727, 11005, 12604, 14260, 15755, 16330, 16988, 19454, 21235, 22010, 31510, 32660, 38908, 42470, 44020, 48635, 50623, 63020, 84940, 97270, 97681, 101246, 194540, 195362, 202492, 223721, 253115, 301537, 390724, 447442, 488405, 506230, 603074, 894884, 976810, 1012460, 1118605, 1206148, 1507685, 1953620, 2237210, 3015370, 4474420, 6030740, 6935351, 13870702, 27741404, 34676755, 69353510, 138707020]

約数ペア:

[(1, 138707020), (2, 69353510), (4, 34676755), (5, 27741404), (10, 13870702), (20, 6935351), (23, 6030740), (31, 4474420), (46, 3015370), (62, 2237210), (71, 1953620), (92, 1507685), (115, 1206148), (124, 1118605), (137, 1012460), (142, 976810), (155, 894884), (230, 603074), (274, 506230), (284, 488405), (310, 447442), (355, 390724), (460, 301537), (548, 253115), (620, 223721), (685, 202492), (710, 195362), (713, 194540), (1370, 101246), (1420, 97681), (1426, 97270), (1633, 84940), (2201, 63020), (2740, 50623), (2852, 48635), (3151, 44020), (3266, 42470), (3565, 38908), (4247, 32660), (4402, 31510), (6302, 22010), (6532, 21235), (7130, 19454), (8165, 16988), (8494, 16330), (8804, 15755), (9727, 14260), (11005, 12604)]