201620664556

素因数分解:

$2^2\times {\mathrm{19}}^2\times {\mathrm{61}}^1\times {\mathrm{577}}^1\times {\mathrm{3967}}^1$

素因数の和:4647

約数の個数: 72

約数和(自身を含む): 379240060416

約数和(自身を除く): 177619395860

約数列:

[1, 2, 4, 19, 38, 61, 76, 122, 244, 361, 577, 722, 1154, 1159, 1444, 2308, 2318, 3967, 4636, 7934, 10963, 15868, 21926, 22021, 35197, 43852, 44042, 70394, 75373, 88084, 140788, 150746, 208297, 241987, 301492, 416594, 483974, 668743, 833188, 967948, 1337486, 1432087, 2288959, 2674972, 2864174, 4577918, 4597753, 5728348, 9155836, 9195506, 12706117, 18391012, 25412234, 43490221, 50824468, 86980442, 87357307, 139626499, 173960884, 174714614, 279252998, 349429228, 558505996, 826314199, 1652628398, 2652903481, 3305256796, 5305806962, 10611613924, 50405166139, 100810332278, 201620664556]

約数ペア:

[(1, 201620664556), (2, 100810332278), (4, 50405166139), (19, 10611613924), (38, 5305806962), (61, 3305256796), (76, 2652903481), (122, 1652628398), (244, 826314199), (361, 558505996), (577, 349429228), (722, 279252998), (1154, 174714614), (1159, 173960884), (1444, 139626499), (2308, 87357307), (2318, 86980442), (3967, 50824468), (4636, 43490221), (7934, 25412234), (10963, 18391012), (15868, 12706117), (21926, 9195506), (22021, 9155836), (35197, 5728348), (43852, 4597753), (44042, 4577918), (70394, 2864174), (75373, 2674972), (88084, 2288959), (140788, 1432087), (150746, 1337486), (208297, 967948), (241987, 833188), (301492, 668743), (416594, 483974)]