1636639920

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{971}}^1\times {\mathrm{2341}}^1$

素因数の和:3331

約数の個数: 120

約数和(自身を含む): 5504393232

約数和(自身を除く): 3867753312

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 971, 1942, 2341, 2913, 3884, 4682, 4855, 5826, 7023, 7768, 8739, 9364, 9710, 11652, 11705, 14046, 14565, 15536, 17478, 18728, 19420, 21069, 23304, 23410, 28092, 29130, 34956, 35115, 37456, 38840, 42138, 43695, 46608, 46820, 56184, 58260, 69912, 70230, 77680, 84276, 87390, 93640, 105345, 112368, 116520, 139824, 140460, 168552, 174780, 187280, 210690, 233040, 280920, 337104, 349560, 421380, 561840, 699120, 842760, 1685520, 2273111, 4546222, 6819333, 9092444, 11365555, 13638666, 18184888, 20457999, 22731110, 27277332, 34096665, 36369776, 40915998, 45462220, 54554664, 68193330, 81831996, 90924440, 102289995, 109109328, 136386660, 163663992, 181848880, 204579990, 272773320, 327327984, 409159980, 545546640, 818319960, 1636639920]

約数ペア:

[(1, 1636639920), (2, 818319960), (3, 545546640), (4, 409159980), (5, 327327984), (6, 272773320), (8, 204579990), (9, 181848880), (10, 163663992), (12, 136386660), (15, 109109328), (16, 102289995), (18, 90924440), (20, 81831996), (24, 68193330), (30, 54554664), (36, 45462220), (40, 40915998), (45, 36369776), (48, 34096665), (60, 27277332), (72, 22731110), (80, 20457999), (90, 18184888), (120, 13638666), (144, 11365555), (180, 9092444), (240, 6819333), (360, 4546222), (720, 2273111), (971, 1685520), (1942, 842760), (2341, 699120), (2913, 561840), (3884, 421380), (4682, 349560), (4855, 337104), (5826, 280920), (7023, 233040), (7768, 210690), (8739, 187280), (9364, 174780), (9710, 168552), (11652, 140460), (11705, 139824), (14046, 116520), (14565, 112368), (15536, 105345), (17478, 93640), (18728, 87390), (19420, 84276), (21069, 77680), (23304, 70230), (23410, 69912), (28092, 58260), (29130, 56184), (34956, 46820), (35115, 46608), (37456, 43695), (38840, 42138)]