1998320560

素因数分解:

$2^4\times 5^1\times {\mathrm{59}}^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1$

素因数の和:299

約数の個数: 160

約数和(自身を含む): 4917542400

約数和(自身を除く): 2919221840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 59, 67, 71, 80, 89, 118, 134, 142, 178, 236, 268, 284, 295, 335, 355, 356, 445, 472, 536, 568, 590, 670, 710, 712, 890, 944, 1072, 1136, 1180, 1340, 1420, 1424, 1780, 2360, 2680, 2840, 3560, 3953, 4189, 4720, 4757, 5251, 5360, 5680, 5963, 6319, 7120, 7906, 8378, 9514, 10502, 11926, 12638, 15812, 16756, 19028, 19765, 20945, 21004, 23785, 23852, 25276, 26255, 29815, 31595, 31624, 33512, 38056, 39530, 41890, 42008, 47570, 47704, 50552, 52510, 59630, 63190, 63248, 67024, 76112, 79060, 83780, 84016, 95140, 95408, 101104, 105020, 119260, 126380, 158120, 167560, 190280, 210040, 238520, 252760, 280663, 316240, 335120, 351817, 372821, 380560, 420080, 423373, 477040, 505520, 561326, 703634, 745642, 846746, 1122652, 1403315, 1407268, 1491284, 1693492, 1759085, 1864105, 2116865, 2245304, 2806630, 2814536, 2982568, 3386984, 3518170, 3728210, 4233730, 4490608, 5613260, 5629072, 5965136, 6773968, 7036340, 7456420, 8467460, 11226520, 14072680, 14912840, 16934920, 22453040, 24979007, 28145360, 29825680, 33869840, 49958014, 99916028, 124895035, 199832056, 249790070, 399664112, 499580140, 999160280, 1998320560]

約数ペア:

[(1, 1998320560), (2, 999160280), (4, 499580140), (5, 399664112), (8, 249790070), (10, 199832056), (16, 124895035), (20, 99916028), (40, 49958014), (59, 33869840), (67, 29825680), (71, 28145360), (80, 24979007), (89, 22453040), (118, 16934920), (134, 14912840), (142, 14072680), (178, 11226520), (236, 8467460), (268, 7456420), (284, 7036340), (295, 6773968), (335, 5965136), (355, 5629072), (356, 5613260), (445, 4490608), (472, 4233730), (536, 3728210), (568, 3518170), (590, 3386984), (670, 2982568), (710, 2814536), (712, 2806630), (890, 2245304), (944, 2116865), (1072, 1864105), (1136, 1759085), (1180, 1693492), (1340, 1491284), (1420, 1407268), (1424, 1403315), (1780, 1122652), (2360, 846746), (2680, 745642), (2840, 703634), (3560, 561326), (3953, 505520), (4189, 477040), (4720, 423373), (4757, 420080), (5251, 380560), (5360, 372821), (5680, 351817), (5963, 335120), (6319, 316240), (7120, 280663), (7906, 252760), (8378, 238520), (9514, 210040), (10502, 190280), (11926, 167560), (12638, 158120), (15812, 126380), (16756, 119260), (19028, 105020), (19765, 101104), (20945, 95408), (21004, 95140), (23785, 84016), (23852, 83780), (25276, 79060), (26255, 76112), (29815, 67024), (31595, 63248), (31624, 63190), (33512, 59630), (38056, 52510), (39530, 50552), (41890, 47704), (42008, 47570)]