19212800

素因数分解:

$2^9\times 5^2\times {\mathrm{19}}^1\times {\mathrm{79}}^1$

素因数の和:126

約数の個数: 120

約数和(自身を含む): 50740800

約数和(自身を除く): 31528000

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 25, 32, 38, 40, 50, 64, 76, 79, 80, 95, 100, 128, 152, 158, 160, 190, 200, 256, 304, 316, 320, 380, 395, 400, 475, 512, 608, 632, 640, 760, 790, 800, 950, 1216, 1264, 1280, 1501, 1520, 1580, 1600, 1900, 1975, 2432, 2528, 2560, 3002, 3040, 3160, 3200, 3800, 3950, 4864, 5056, 6004, 6080, 6320, 6400, 7505, 7600, 7900, 9728, 10112, 12008, 12160, 12640, 12800, 15010, 15200, 15800, 20224, 24016, 24320, 25280, 30020, 30400, 31600, 37525, 40448, 48032, 48640, 50560, 60040, 60800, 63200, 75050, 96064, 101120, 120080, 121600, 126400, 150100, 192128, 202240, 240160, 243200, 252800, 300200, 384256, 480320, 505600, 600400, 768512, 960640, 1011200, 1200800, 1921280, 2401600, 3842560, 4803200, 9606400, 19212800]

約数ペア:

[(1, 19212800), (2, 9606400), (4, 4803200), (5, 3842560), (8, 2401600), (10, 1921280), (16, 1200800), (19, 1011200), (20, 960640), (25, 768512), (32, 600400), (38, 505600), (40, 480320), (50, 384256), (64, 300200), (76, 252800), (79, 243200), (80, 240160), (95, 202240), (100, 192128), (128, 150100), (152, 126400), (158, 121600), (160, 120080), (190, 101120), (200, 96064), (256, 75050), (304, 63200), (316, 60800), (320, 60040), (380, 50560), (395, 48640), (400, 48032), (475, 40448), (512, 37525), (608, 31600), (632, 30400), (640, 30020), (760, 25280), (790, 24320), (800, 24016), (950, 20224), (1216, 15800), (1264, 15200), (1280, 15010), (1501, 12800), (1520, 12640), (1580, 12160), (1600, 12008), (1900, 10112), (1975, 9728), (2432, 7900), (2528, 7600), (2560, 7505), (3002, 6400), (3040, 6320), (3160, 6080), (3200, 6004), (3800, 5056), (3950, 4864)]