90261920

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{397}}^1$

素因数の和:455

約数の個数: 144

約数和(自身を含む): 257259240

約数和(自身を除く): 166997320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 29, 32, 35, 40, 49, 56, 58, 70, 80, 98, 112, 116, 140, 145, 160, 196, 203, 224, 232, 245, 280, 290, 392, 397, 406, 464, 490, 560, 580, 784, 794, 812, 928, 980, 1015, 1120, 1160, 1421, 1568, 1588, 1624, 1960, 1985, 2030, 2320, 2779, 2842, 3176, 3248, 3920, 3970, 4060, 4640, 5558, 5684, 6352, 6496, 7105, 7840, 7940, 8120, 11116, 11368, 11513, 12704, 13895, 14210, 15880, 16240, 19453, 22232, 22736, 23026, 27790, 28420, 31760, 32480, 38906, 44464, 45472, 46052, 55580, 56840, 57565, 63520, 77812, 80591, 88928, 92104, 97265, 111160, 113680, 115130, 155624, 161182, 184208, 194530, 222320, 227360, 230260, 311248, 322364, 368416, 389060, 402955, 444640, 460520, 564137, 622496, 644728, 778120, 805910, 921040, 1128274, 1289456, 1556240, 1611820, 1842080, 2256548, 2578912, 2820685, 3112480, 3223640, 4513096, 5641370, 6447280, 9026192, 11282740, 12894560, 18052384, 22565480, 45130960, 90261920]

約数ペア:

[(1, 90261920), (2, 45130960), (4, 22565480), (5, 18052384), (7, 12894560), (8, 11282740), (10, 9026192), (14, 6447280), (16, 5641370), (20, 4513096), (28, 3223640), (29, 3112480), (32, 2820685), (35, 2578912), (40, 2256548), (49, 1842080), (56, 1611820), (58, 1556240), (70, 1289456), (80, 1128274), (98, 921040), (112, 805910), (116, 778120), (140, 644728), (145, 622496), (160, 564137), (196, 460520), (203, 444640), (224, 402955), (232, 389060), (245, 368416), (280, 322364), (290, 311248), (392, 230260), (397, 227360), (406, 222320), (464, 194530), (490, 184208), (560, 161182), (580, 155624), (784, 115130), (794, 113680), (812, 111160), (928, 97265), (980, 92104), (1015, 88928), (1120, 80591), (1160, 77812), (1421, 63520), (1568, 57565), (1588, 56840), (1624, 55580), (1960, 46052), (1985, 45472), (2030, 44464), (2320, 38906), (2779, 32480), (2842, 31760), (3176, 28420), (3248, 27790), (3920, 23026), (3970, 22736), (4060, 22232), (4640, 19453), (5558, 16240), (5684, 15880), (6352, 14210), (6496, 13895), (7105, 12704), (7840, 11513), (7940, 11368), (8120, 11116)]