2021988780

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{1604753}}^1$

素因数の和:1604775

約数の個数: 72

約数和(自身を含む): 7009565472

約数和(自身を除く): 4987576692

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 1604753, 3209506, 4814259, 6419012, 8023765, 9628518, 11233271, 14442777, 16047530, 19257036, 22466542, 24071295, 28885554, 32095060, 33699813, 44933084, 48142590, 56166355, 57771108, 67399626, 72213885, 96285180, 101099439, 112332710, 134799252, 144427770, 168499065, 202198878, 224665420, 288855540, 336998130, 404397756, 505497195, 673996260, 1010994390, 2021988780]

約数ペア:

[(1, 2021988780), (2, 1010994390), (3, 673996260), (4, 505497195), (5, 404397756), (6, 336998130), (7, 288855540), (9, 224665420), (10, 202198878), (12, 168499065), (14, 144427770), (15, 134799252), (18, 112332710), (20, 101099439), (21, 96285180), (28, 72213885), (30, 67399626), (35, 57771108), (36, 56166355), (42, 48142590), (45, 44933084), (60, 33699813), (63, 32095060), (70, 28885554), (84, 24071295), (90, 22466542), (105, 19257036), (126, 16047530), (140, 14442777), (180, 11233271), (210, 9628518), (252, 8023765), (315, 6419012), (420, 4814259), (630, 3209506), (1260, 1604753)]