215702960

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{7907}}^1$

素因数の和:7962

約数の個数: 80

約数和(自身を含む): 564820992

約数和(自身を除く): 349118032

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 31, 40, 44, 55, 62, 80, 88, 110, 124, 155, 176, 220, 248, 310, 341, 440, 496, 620, 682, 880, 1240, 1364, 1705, 2480, 2728, 3410, 5456, 6820, 7907, 13640, 15814, 27280, 31628, 39535, 63256, 79070, 86977, 126512, 158140, 173954, 245117, 316280, 347908, 434885, 490234, 632560, 695816, 869770, 980468, 1225585, 1391632, 1739540, 1960936, 2451170, 2696287, 3479080, 3921872, 4902340, 5392574, 6958160, 9804680, 10785148, 13481435, 19609360, 21570296, 26962870, 43140592, 53925740, 107851480, 215702960]

約数ペア:

[(1, 215702960), (2, 107851480), (4, 53925740), (5, 43140592), (8, 26962870), (10, 21570296), (11, 19609360), (16, 13481435), (20, 10785148), (22, 9804680), (31, 6958160), (40, 5392574), (44, 4902340), (55, 3921872), (62, 3479080), (80, 2696287), (88, 2451170), (110, 1960936), (124, 1739540), (155, 1391632), (176, 1225585), (220, 980468), (248, 869770), (310, 695816), (341, 632560), (440, 490234), (496, 434885), (620, 347908), (682, 316280), (880, 245117), (1240, 173954), (1364, 158140), (1705, 126512), (2480, 86977), (2728, 79070), (3410, 63256), (5456, 39535), (6820, 31628), (7907, 27280), (13640, 15814)]