81016020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{14519}}^1$

素因数の和:14565

約数の個数: 72

約数和(自身を含む): 253693440

約数和(自身を除く): 172677420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 31, 36, 45, 60, 62, 90, 93, 124, 155, 180, 186, 279, 310, 372, 465, 558, 620, 930, 1116, 1395, 1860, 2790, 5580, 14519, 29038, 43557, 58076, 72595, 87114, 130671, 145190, 174228, 217785, 261342, 290380, 435570, 450089, 522684, 653355, 871140, 900178, 1306710, 1350267, 1800356, 2250445, 2613420, 2700534, 4050801, 4500890, 5401068, 6751335, 8101602, 9001780, 13502670, 16203204, 20254005, 27005340, 40508010, 81016020]

約数ペア:

[(1, 81016020), (2, 40508010), (3, 27005340), (4, 20254005), (5, 16203204), (6, 13502670), (9, 9001780), (10, 8101602), (12, 6751335), (15, 5401068), (18, 4500890), (20, 4050801), (30, 2700534), (31, 2613420), (36, 2250445), (45, 1800356), (60, 1350267), (62, 1306710), (90, 900178), (93, 871140), (124, 653355), (155, 522684), (180, 450089), (186, 435570), (279, 290380), (310, 261342), (372, 217785), (465, 174228), (558, 145190), (620, 130671), (930, 87114), (1116, 72595), (1395, 58076), (1860, 43557), (2790, 29038), (5580, 14519)]