28914320

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{131}}^1$

素因数の和:264

約数の個数: 80

約数和(自身を含む): 70709760

約数和(自身を除く): 41795440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 89, 124, 131, 155, 178, 248, 262, 310, 356, 445, 496, 524, 620, 655, 712, 890, 1048, 1240, 1310, 1424, 1780, 2096, 2480, 2620, 2759, 3560, 4061, 5240, 5518, 7120, 8122, 10480, 11036, 11659, 13795, 16244, 20305, 22072, 23318, 27590, 32488, 40610, 44144, 46636, 55180, 58295, 64976, 81220, 93272, 110360, 116590, 162440, 186544, 220720, 233180, 324880, 361429, 466360, 722858, 932720, 1445716, 1807145, 2891432, 3614290, 5782864, 7228580, 14457160, 28914320]

約数ペア:

[(1, 28914320), (2, 14457160), (4, 7228580), (5, 5782864), (8, 3614290), (10, 2891432), (16, 1807145), (20, 1445716), (31, 932720), (40, 722858), (62, 466360), (80, 361429), (89, 324880), (124, 233180), (131, 220720), (155, 186544), (178, 162440), (248, 116590), (262, 110360), (310, 93272), (356, 81220), (445, 64976), (496, 58295), (524, 55180), (620, 46636), (655, 44144), (712, 40610), (890, 32488), (1048, 27590), (1240, 23318), (1310, 22072), (1424, 20305), (1780, 16244), (2096, 13795), (2480, 11659), (2620, 11036), (2759, 10480), (3560, 8122), (4061, 7120), (5240, 5518)]