19974320

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{773}}^1$

素因数の和:822

約数の個数: 80

約数和(自身を含む): 51827040

約数和(自身を除く): 31852720

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 19, 20, 34, 38, 40, 68, 76, 80, 85, 95, 136, 152, 170, 190, 272, 304, 323, 340, 380, 646, 680, 760, 773, 1292, 1360, 1520, 1546, 1615, 2584, 3092, 3230, 3865, 5168, 6184, 6460, 7730, 12368, 12920, 13141, 14687, 15460, 25840, 26282, 29374, 30920, 52564, 58748, 61840, 65705, 73435, 105128, 117496, 131410, 146870, 210256, 234992, 249679, 262820, 293740, 499358, 525640, 587480, 998716, 1051280, 1174960, 1248395, 1997432, 2496790, 3994864, 4993580, 9987160, 19974320]

約数ペア:

[(1, 19974320), (2, 9987160), (4, 4993580), (5, 3994864), (8, 2496790), (10, 1997432), (16, 1248395), (17, 1174960), (19, 1051280), (20, 998716), (34, 587480), (38, 525640), (40, 499358), (68, 293740), (76, 262820), (80, 249679), (85, 234992), (95, 210256), (136, 146870), (152, 131410), (170, 117496), (190, 105128), (272, 73435), (304, 65705), (323, 61840), (340, 58748), (380, 52564), (646, 30920), (680, 29374), (760, 26282), (773, 25840), (1292, 15460), (1360, 14687), (1520, 13141), (1546, 12920), (1615, 12368), (2584, 7730), (3092, 6460), (3230, 6184), (3865, 5168)]