1620990

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1$

素因数の和:134

約数の個数: 96

約数和(自身を含む): 5031936

約数和(自身を除く): 3410946

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 31, 35, 42, 45, 62, 63, 70, 83, 90, 93, 105, 126, 155, 166, 186, 210, 217, 249, 279, 310, 315, 415, 434, 465, 498, 558, 581, 630, 651, 747, 830, 930, 1085, 1162, 1245, 1302, 1395, 1494, 1743, 1953, 2170, 2490, 2573, 2790, 2905, 3255, 3486, 3735, 3906, 5146, 5229, 5810, 6510, 7470, 7719, 8715, 9765, 10458, 12865, 15438, 17430, 18011, 19530, 23157, 25730, 26145, 36022, 38595, 46314, 52290, 54033, 77190, 90055, 108066, 115785, 162099, 180110, 231570, 270165, 324198, 540330, 810495, 1620990]

約数ペア:

[(1, 1620990), (2, 810495), (3, 540330), (5, 324198), (6, 270165), (7, 231570), (9, 180110), (10, 162099), (14, 115785), (15, 108066), (18, 90055), (21, 77190), (30, 54033), (31, 52290), (35, 46314), (42, 38595), (45, 36022), (62, 26145), (63, 25730), (70, 23157), (83, 19530), (90, 18011), (93, 17430), (105, 15438), (126, 12865), (155, 10458), (166, 9765), (186, 8715), (210, 7719), (217, 7470), (249, 6510), (279, 5810), (310, 5229), (315, 5146), (415, 3906), (434, 3735), (465, 3486), (498, 3255), (558, 2905), (581, 2790), (630, 2573), (651, 2490), (747, 2170), (830, 1953), (930, 1743), (1085, 1494), (1162, 1395), (1245, 1302)]