320333000

素因数分解:

$2^3\times 5^3\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{601}}^1$

素因数の和:676

約数の個数: 128

約数和(自身を含む): 828303840

約数和(自身を除く): 507970840

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 41, 50, 52, 65, 82, 100, 104, 125, 130, 164, 200, 205, 250, 260, 325, 328, 410, 500, 520, 533, 601, 650, 820, 1000, 1025, 1066, 1202, 1300, 1625, 1640, 2050, 2132, 2404, 2600, 2665, 3005, 3250, 4100, 4264, 4808, 5125, 5330, 6010, 6500, 7813, 8200, 10250, 10660, 12020, 13000, 13325, 15025, 15626, 20500, 21320, 24040, 24641, 26650, 30050, 31252, 39065, 41000, 49282, 53300, 60100, 62504, 66625, 75125, 78130, 98564, 106600, 120200, 123205, 133250, 150250, 156260, 195325, 197128, 246410, 266500, 300500, 312520, 320333, 390650, 492820, 533000, 601000, 616025, 640666, 781300, 976625, 985640, 1232050, 1281332, 1562600, 1601665, 1953250, 2464100, 2562664, 3080125, 3203330, 3906500, 4928200, 6160250, 6406660, 7813000, 8008325, 12320500, 12813320, 16016650, 24641000, 32033300, 40041625, 64066600, 80083250, 160166500, 320333000]

約数ペア:

[(1, 320333000), (2, 160166500), (4, 80083250), (5, 64066600), (8, 40041625), (10, 32033300), (13, 24641000), (20, 16016650), (25, 12813320), (26, 12320500), (40, 8008325), (41, 7813000), (50, 6406660), (52, 6160250), (65, 4928200), (82, 3906500), (100, 3203330), (104, 3080125), (125, 2562664), (130, 2464100), (164, 1953250), (200, 1601665), (205, 1562600), (250, 1281332), (260, 1232050), (325, 985640), (328, 976625), (410, 781300), (500, 640666), (520, 616025), (533, 601000), (601, 533000), (650, 492820), (820, 390650), (1000, 320333), (1025, 312520), (1066, 300500), (1202, 266500), (1300, 246410), (1625, 197128), (1640, 195325), (2050, 156260), (2132, 150250), (2404, 133250), (2600, 123205), (2665, 120200), (3005, 106600), (3250, 98564), (4100, 78130), (4264, 75125), (4808, 66625), (5125, 62504), (5330, 60100), (6010, 53300), (6500, 49282), (7813, 41000), (8200, 39065), (10250, 31252), (10660, 30050), (12020, 26650), (13000, 24641), (13325, 24040), (15025, 21320), (15626, 20500)]