388791900

素因数分解:

$2^2\times 3^4\times 5^2\times 7^1\times {\mathrm{6857}}^1$

素因数の和:6890

約数の個数: 180

約数和(自身を含む): 1440564048

約数和(自身を除く): 1051772148

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 25, 27, 28, 30, 35, 36, 42, 45, 50, 54, 60, 63, 70, 75, 81, 84, 90, 100, 105, 108, 126, 135, 140, 150, 162, 175, 180, 189, 210, 225, 252, 270, 300, 315, 324, 350, 378, 405, 420, 450, 525, 540, 567, 630, 675, 700, 756, 810, 900, 945, 1050, 1134, 1260, 1350, 1575, 1620, 1890, 2025, 2100, 2268, 2700, 2835, 3150, 3780, 4050, 4725, 5670, 6300, 6857, 8100, 9450, 11340, 13714, 14175, 18900, 20571, 27428, 28350, 34285, 41142, 47999, 56700, 61713, 68570, 82284, 95998, 102855, 123426, 137140, 143997, 171425, 185139, 191996, 205710, 239995, 246852, 287994, 308565, 342850, 370278, 411420, 431991, 479990, 514275, 555417, 575988, 617130, 685700, 719985, 740556, 863982, 925695, 959980, 1028550, 1110834, 1199975, 1234260, 1295973, 1439970, 1542825, 1727964, 1851390, 2057100, 2159955, 2221668, 2399950, 2591946, 2777085, 2879940, 3085650, 3599925, 3702780, 3887919, 4319910, 4628475, 4799900, 5183892, 5554170, 6171300, 6479865, 7199850, 7775838, 8639820, 9256950, 10799775, 11108340, 12959730, 13885425, 14399700, 15551676, 18513900, 19439595, 21599550, 25919460, 27770850, 32399325, 38879190, 43199100, 55541700, 64798650, 77758380, 97197975, 129597300, 194395950, 388791900]

約数ペア:

[(1, 388791900), (2, 194395950), (3, 129597300), (4, 97197975), (5, 77758380), (6, 64798650), (7, 55541700), (9, 43199100), (10, 38879190), (12, 32399325), (14, 27770850), (15, 25919460), (18, 21599550), (20, 19439595), (21, 18513900), (25, 15551676), (27, 14399700), (28, 13885425), (30, 12959730), (35, 11108340), (36, 10799775), (42, 9256950), (45, 8639820), (50, 7775838), (54, 7199850), (60, 6479865), (63, 6171300), (70, 5554170), (75, 5183892), (81, 4799900), (84, 4628475), (90, 4319910), (100, 3887919), (105, 3702780), (108, 3599925), (126, 3085650), (135, 2879940), (140, 2777085), (150, 2591946), (162, 2399950), (175, 2221668), (180, 2159955), (189, 2057100), (210, 1851390), (225, 1727964), (252, 1542825), (270, 1439970), (300, 1295973), (315, 1234260), (324, 1199975), (350, 1110834), (378, 1028550), (405, 959980), (420, 925695), (450, 863982), (525, 740556), (540, 719985), (567, 685700), (630, 617130), (675, 575988), (700, 555417), (756, 514275), (810, 479990), (900, 431991), (945, 411420), (1050, 370278), (1134, 342850), (1260, 308565), (1350, 287994), (1575, 246852), (1620, 239995), (1890, 205710), (2025, 191996), (2100, 185139), (2268, 171425), (2700, 143997), (2835, 137140), (3150, 123426), (3780, 102855), (4050, 95998), (4725, 82284), (5670, 68570), (6300, 61713), (6857, 56700), (8100, 47999), (9450, 41142), (11340, 34285), (13714, 28350), (14175, 27428), (18900, 20571)]