30020000

素因数分解:

$2^5\times 5^4\times {\mathrm{19}}^1\times {\mathrm{79}}^1$

素因数の和:128

約数の個数: 120

約数和(自身を含む): 78724800

約数和(自身を除く): 48704800

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 25, 32, 38, 40, 50, 76, 79, 80, 95, 100, 125, 152, 158, 160, 190, 200, 250, 304, 316, 380, 395, 400, 475, 500, 608, 625, 632, 760, 790, 800, 950, 1000, 1250, 1264, 1501, 1520, 1580, 1900, 1975, 2000, 2375, 2500, 2528, 3002, 3040, 3160, 3800, 3950, 4000, 4750, 5000, 6004, 6320, 7505, 7600, 7900, 9500, 9875, 10000, 11875, 12008, 12640, 15010, 15200, 15800, 19000, 19750, 20000, 23750, 24016, 30020, 31600, 37525, 38000, 39500, 47500, 48032, 49375, 60040, 63200, 75050, 76000, 79000, 95000, 98750, 120080, 150100, 158000, 187625, 190000, 197500, 240160, 300200, 316000, 375250, 380000, 395000, 600400, 750500, 790000, 938125, 1200800, 1501000, 1580000, 1876250, 3002000, 3752500, 6004000, 7505000, 15010000, 30020000]

約数ペア:

[(1, 30020000), (2, 15010000), (4, 7505000), (5, 6004000), (8, 3752500), (10, 3002000), (16, 1876250), (19, 1580000), (20, 1501000), (25, 1200800), (32, 938125), (38, 790000), (40, 750500), (50, 600400), (76, 395000), (79, 380000), (80, 375250), (95, 316000), (100, 300200), (125, 240160), (152, 197500), (158, 190000), (160, 187625), (190, 158000), (200, 150100), (250, 120080), (304, 98750), (316, 95000), (380, 79000), (395, 76000), (400, 75050), (475, 63200), (500, 60040), (608, 49375), (625, 48032), (632, 47500), (760, 39500), (790, 38000), (800, 37525), (950, 31600), (1000, 30020), (1250, 24016), (1264, 23750), (1501, 20000), (1520, 19750), (1580, 19000), (1900, 15800), (1975, 15200), (2000, 15010), (2375, 12640), (2500, 12008), (2528, 11875), (3002, 10000), (3040, 9875), (3160, 9500), (3800, 7900), (3950, 7600), (4000, 7505), (4750, 6320), (5000, 6004)]