19643840

素因数分解:

$2^6\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{157}}^1$

素因数の和:214

約数の個数: 112

約数和(自身を含む): 52011072

約数和(自身を除く): 32367232

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 23, 32, 34, 40, 46, 64, 68, 80, 85, 92, 115, 136, 157, 160, 170, 184, 230, 272, 314, 320, 340, 368, 391, 460, 544, 628, 680, 736, 782, 785, 920, 1088, 1256, 1360, 1472, 1564, 1570, 1840, 1955, 2512, 2669, 2720, 3128, 3140, 3611, 3680, 3910, 5024, 5338, 5440, 6256, 6280, 7222, 7360, 7820, 10048, 10676, 12512, 12560, 13345, 14444, 15640, 18055, 21352, 25024, 25120, 26690, 28888, 31280, 36110, 42704, 50240, 53380, 57776, 61387, 62560, 72220, 85408, 106760, 115552, 122774, 125120, 144440, 170816, 213520, 231104, 245548, 288880, 306935, 427040, 491096, 577760, 613870, 854080, 982192, 1155520, 1227740, 1964384, 2455480, 3928768, 4910960, 9821920, 19643840]

約数ペア:

[(1, 19643840), (2, 9821920), (4, 4910960), (5, 3928768), (8, 2455480), (10, 1964384), (16, 1227740), (17, 1155520), (20, 982192), (23, 854080), (32, 613870), (34, 577760), (40, 491096), (46, 427040), (64, 306935), (68, 288880), (80, 245548), (85, 231104), (92, 213520), (115, 170816), (136, 144440), (157, 125120), (160, 122774), (170, 115552), (184, 106760), (230, 85408), (272, 72220), (314, 62560), (320, 61387), (340, 57776), (368, 53380), (391, 50240), (460, 42704), (544, 36110), (628, 31280), (680, 28888), (736, 26690), (782, 25120), (785, 25024), (920, 21352), (1088, 18055), (1256, 15640), (1360, 14444), (1472, 13345), (1564, 12560), (1570, 12512), (1840, 10676), (1955, 10048), (2512, 7820), (2669, 7360), (2720, 7222), (3128, 6280), (3140, 6256), (3611, 5440), (3680, 5338), (3910, 5024)]