25405280

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{137}}^1$

素因数の和:232

約数の個数: 96

約数和(自身を含む): 64683360

約数和(自身を除く): 39278080

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 61, 76, 80, 95, 122, 137, 152, 160, 190, 244, 274, 304, 305, 380, 488, 548, 608, 610, 685, 760, 976, 1096, 1159, 1220, 1370, 1520, 1952, 2192, 2318, 2440, 2603, 2740, 3040, 4384, 4636, 4880, 5206, 5480, 5795, 8357, 9272, 9760, 10412, 10960, 11590, 13015, 16714, 18544, 20824, 21920, 23180, 26030, 33428, 37088, 41648, 41785, 46360, 52060, 66856, 83296, 83570, 92720, 104120, 133712, 158783, 167140, 185440, 208240, 267424, 317566, 334280, 416480, 635132, 668560, 793915, 1270264, 1337120, 1587830, 2540528, 3175660, 5081056, 6351320, 12702640, 25405280]

約数ペア:

[(1, 25405280), (2, 12702640), (4, 6351320), (5, 5081056), (8, 3175660), (10, 2540528), (16, 1587830), (19, 1337120), (20, 1270264), (32, 793915), (38, 668560), (40, 635132), (61, 416480), (76, 334280), (80, 317566), (95, 267424), (122, 208240), (137, 185440), (152, 167140), (160, 158783), (190, 133712), (244, 104120), (274, 92720), (304, 83570), (305, 83296), (380, 66856), (488, 52060), (548, 46360), (608, 41785), (610, 41648), (685, 37088), (760, 33428), (976, 26030), (1096, 23180), (1159, 21920), (1220, 20824), (1370, 18544), (1520, 16714), (1952, 13015), (2192, 11590), (2318, 10960), (2440, 10412), (2603, 9760), (2740, 9272), (3040, 8357), (4384, 5795), (4636, 5480), (4880, 5206)]