28421330

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{127}}^1\times {\mathrm{139}}^1$

素因数の和:303

約数の個数: 64

約数和(自身を含む): 61931520

約数和(自身を除く): 33510190

約数列:

[1, 2, 5, 7, 10, 14, 23, 35, 46, 70, 115, 127, 139, 161, 230, 254, 278, 322, 635, 695, 805, 889, 973, 1270, 1390, 1610, 1778, 1946, 2921, 3197, 4445, 4865, 5842, 6394, 8890, 9730, 14605, 15985, 17653, 20447, 22379, 29210, 31970, 35306, 40894, 44758, 88265, 102235, 111895, 123571, 176530, 204470, 223790, 247142, 406019, 617855, 812038, 1235710, 2030095, 2842133, 4060190, 5684266, 14210665, 28421330]

約数ペア:

[(1, 28421330), (2, 14210665), (5, 5684266), (7, 4060190), (10, 2842133), (14, 2030095), (23, 1235710), (35, 812038), (46, 617855), (70, 406019), (115, 247142), (127, 223790), (139, 204470), (161, 176530), (230, 123571), (254, 111895), (278, 102235), (322, 88265), (635, 44758), (695, 40894), (805, 35306), (889, 31970), (973, 29210), (1270, 22379), (1390, 20447), (1610, 17653), (1778, 15985), (1946, 14605), (2921, 9730), (3197, 8890), (4445, 6394), (4865, 5842)]