281121010

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{761}}^1$

素因数の和:879

約数の個数: 64

約数和(自身を含む): 559941984

約数和(自身を除く): 278820974

約数列:

[1, 2, 5, 10, 17, 34, 41, 53, 82, 85, 106, 170, 205, 265, 410, 530, 697, 761, 901, 1394, 1522, 1802, 2173, 3485, 3805, 4346, 4505, 6970, 7610, 9010, 10865, 12937, 21730, 25874, 31201, 36941, 40333, 62402, 64685, 73882, 80666, 129370, 156005, 184705, 201665, 312010, 369410, 403330, 530417, 685661, 1060834, 1371322, 1653653, 2652085, 3307306, 3428305, 5304170, 6856610, 8268265, 16536530, 28112101, 56224202, 140560505, 281121010]

約数ペア:

[(1, 281121010), (2, 140560505), (5, 56224202), (10, 28112101), (17, 16536530), (34, 8268265), (41, 6856610), (53, 5304170), (82, 3428305), (85, 3307306), (106, 2652085), (170, 1653653), (205, 1371322), (265, 1060834), (410, 685661), (530, 530417), (697, 403330), (761, 369410), (901, 312010), (1394, 201665), (1522, 184705), (1802, 156005), (2173, 129370), (3485, 80666), (3805, 73882), (4346, 64685), (4505, 62402), (6970, 40333), (7610, 36941), (9010, 31201), (10865, 25874), (12937, 21730)]