17948800

素因数分解:

$2^7\times 5^2\times {\mathrm{71}}^1\times {\mathrm{79}}^1$

素因数の和:174

約数の個数: 96

約数和(自身を含む): 45532800

約数和(自身を除く): 27584000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 71, 79, 80, 100, 128, 142, 158, 160, 200, 284, 316, 320, 355, 395, 400, 568, 632, 640, 710, 790, 800, 1136, 1264, 1420, 1580, 1600, 1775, 1975, 2272, 2528, 2840, 3160, 3200, 3550, 3950, 4544, 5056, 5609, 5680, 6320, 7100, 7900, 9088, 10112, 11218, 11360, 12640, 14200, 15800, 22436, 22720, 25280, 28045, 28400, 31600, 44872, 45440, 50560, 56090, 56800, 63200, 89744, 112180, 113600, 126400, 140225, 179488, 224360, 227200, 252800, 280450, 358976, 448720, 560900, 717952, 897440, 1121800, 1794880, 2243600, 3589760, 4487200, 8974400, 17948800]

約数ペア:

[(1, 17948800), (2, 8974400), (4, 4487200), (5, 3589760), (8, 2243600), (10, 1794880), (16, 1121800), (20, 897440), (25, 717952), (32, 560900), (40, 448720), (50, 358976), (64, 280450), (71, 252800), (79, 227200), (80, 224360), (100, 179488), (128, 140225), (142, 126400), (158, 113600), (160, 112180), (200, 89744), (284, 63200), (316, 56800), (320, 56090), (355, 50560), (395, 45440), (400, 44872), (568, 31600), (632, 28400), (640, 28045), (710, 25280), (790, 22720), (800, 22436), (1136, 15800), (1264, 14200), (1420, 12640), (1580, 11360), (1600, 11218), (1775, 10112), (1975, 9088), (2272, 7900), (2528, 7100), (2840, 6320), (3160, 5680), (3200, 5609), (3550, 5056), (3950, 4544)]