1899922160

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{347}}^1\times {\mathrm{769}}^1$

素因数の和:1218

約数の個数: 80

約数和(自身を含む): 4485650400

約数和(自身を除く): 2585728240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 178, 347, 356, 445, 694, 712, 769, 890, 1388, 1424, 1538, 1735, 1780, 2776, 3076, 3470, 3560, 3845, 5552, 6152, 6940, 7120, 7690, 12304, 13880, 15380, 27760, 30760, 30883, 61520, 61766, 68441, 123532, 136882, 154415, 247064, 266843, 273764, 308830, 342205, 494128, 533686, 547528, 617660, 684410, 1067372, 1095056, 1235320, 1334215, 1368820, 2134744, 2470640, 2668430, 2737640, 4269488, 5336860, 5475280, 10673720, 21347440, 23749027, 47498054, 94996108, 118745135, 189992216, 237490270, 379984432, 474980540, 949961080, 1899922160]

約数ペア:

[(1, 1899922160), (2, 949961080), (4, 474980540), (5, 379984432), (8, 237490270), (10, 189992216), (16, 118745135), (20, 94996108), (40, 47498054), (80, 23749027), (89, 21347440), (178, 10673720), (347, 5475280), (356, 5336860), (445, 4269488), (694, 2737640), (712, 2668430), (769, 2470640), (890, 2134744), (1388, 1368820), (1424, 1334215), (1538, 1235320), (1735, 1095056), (1780, 1067372), (2776, 684410), (3076, 617660), (3470, 547528), (3560, 533686), (3845, 494128), (5552, 342205), (6152, 308830), (6940, 273764), (7120, 266843), (7690, 247064), (12304, 154415), (13880, 136882), (15380, 123532), (27760, 68441), (30760, 61766), (30883, 61520)]