201930320

素因数分解:

$2^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{89}}^1\times {\mathrm{359}}^1$

素因数の和:540

約数の個数: 80

約数和(自身を含む): 482112000

約数和(自身を除く): 280181680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 79, 80, 89, 158, 178, 316, 356, 359, 395, 445, 632, 712, 718, 790, 890, 1264, 1424, 1436, 1580, 1780, 1795, 2872, 3160, 3560, 3590, 5744, 6320, 7031, 7120, 7180, 14062, 14360, 28124, 28361, 28720, 31951, 35155, 56248, 56722, 63902, 70310, 112496, 113444, 127804, 140620, 141805, 159755, 226888, 255608, 281240, 283610, 319510, 453776, 511216, 562480, 567220, 639020, 1134440, 1278040, 2268880, 2524129, 2556080, 5048258, 10096516, 12620645, 20193032, 25241290, 40386064, 50482580, 100965160, 201930320]

約数ペア:

[(1, 201930320), (2, 100965160), (4, 50482580), (5, 40386064), (8, 25241290), (10, 20193032), (16, 12620645), (20, 10096516), (40, 5048258), (79, 2556080), (80, 2524129), (89, 2268880), (158, 1278040), (178, 1134440), (316, 639020), (356, 567220), (359, 562480), (395, 511216), (445, 453776), (632, 319510), (712, 283610), (718, 281240), (790, 255608), (890, 226888), (1264, 159755), (1424, 141805), (1436, 140620), (1580, 127804), (1780, 113444), (1795, 112496), (2872, 70310), (3160, 63902), (3560, 56722), (3590, 56248), (5744, 35155), (6320, 31951), (7031, 28720), (7120, 28361), (7180, 28124), (14062, 14360)]