72228880

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^2\times {\mathrm{41}}^1\times {\mathrm{61}}^1$

素因数の和:153

約数の個数: 120

約数和(自身を含む): 184535064

約数和(自身を除く): 112306184

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 41, 61, 76, 80, 82, 95, 122, 152, 164, 190, 205, 244, 304, 305, 328, 361, 380, 410, 488, 610, 656, 722, 760, 779, 820, 976, 1159, 1220, 1444, 1520, 1558, 1640, 1805, 2318, 2440, 2501, 2888, 3116, 3280, 3610, 3895, 4636, 4880, 5002, 5776, 5795, 6232, 7220, 7790, 9272, 10004, 11590, 12464, 12505, 14440, 14801, 15580, 18544, 20008, 22021, 23180, 25010, 28880, 29602, 31160, 40016, 44042, 46360, 47519, 50020, 59204, 62320, 74005, 88084, 92720, 95038, 100040, 110105, 118408, 148010, 176168, 190076, 200080, 220210, 236816, 237595, 296020, 352336, 380152, 440420, 475190, 592040, 760304, 880840, 902861, 950380, 1184080, 1761680, 1805722, 1900760, 3611444, 3801520, 4514305, 7222888, 9028610, 14445776, 18057220, 36114440, 72228880]

約数ペア:

[(1, 72228880), (2, 36114440), (4, 18057220), (5, 14445776), (8, 9028610), (10, 7222888), (16, 4514305), (19, 3801520), (20, 3611444), (38, 1900760), (40, 1805722), (41, 1761680), (61, 1184080), (76, 950380), (80, 902861), (82, 880840), (95, 760304), (122, 592040), (152, 475190), (164, 440420), (190, 380152), (205, 352336), (244, 296020), (304, 237595), (305, 236816), (328, 220210), (361, 200080), (380, 190076), (410, 176168), (488, 148010), (610, 118408), (656, 110105), (722, 100040), (760, 95038), (779, 92720), (820, 88084), (976, 74005), (1159, 62320), (1220, 59204), (1444, 50020), (1520, 47519), (1558, 46360), (1640, 44042), (1805, 40016), (2318, 31160), (2440, 29602), (2501, 28880), (2888, 25010), (3116, 23180), (3280, 22021), (3610, 20008), (3895, 18544), (4636, 15580), (4880, 14801), (5002, 14440), (5776, 12505), (5795, 12464), (6232, 11590), (7220, 10004), (7790, 9272)]