212491520

素因数分解:

$2^8\times 5^1\times {\mathrm{41}}^1\times {\mathrm{4049}}^1$

素因数の和:4111

約数の個数: 72

約数和(自身を含む): 521526600

約数和(自身を除く): 309035080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 64, 80, 82, 128, 160, 164, 205, 256, 320, 328, 410, 640, 656, 820, 1280, 1312, 1640, 2624, 3280, 4049, 5248, 6560, 8098, 10496, 13120, 16196, 20245, 26240, 32392, 40490, 52480, 64784, 80980, 129568, 161960, 166009, 259136, 323920, 332018, 518272, 647840, 664036, 830045, 1036544, 1295680, 1328072, 1660090, 2591360, 2656144, 3320180, 5182720, 5312288, 6640360, 10624576, 13280720, 21249152, 26561440, 42498304, 53122880, 106245760, 212491520]

約数ペア:

[(1, 212491520), (2, 106245760), (4, 53122880), (5, 42498304), (8, 26561440), (10, 21249152), (16, 13280720), (20, 10624576), (32, 6640360), (40, 5312288), (41, 5182720), (64, 3320180), (80, 2656144), (82, 2591360), (128, 1660090), (160, 1328072), (164, 1295680), (205, 1036544), (256, 830045), (320, 664036), (328, 647840), (410, 518272), (640, 332018), (656, 323920), (820, 259136), (1280, 166009), (1312, 161960), (1640, 129568), (2624, 80980), (3280, 64784), (4049, 52480), (5248, 40490), (6560, 32392), (8098, 26240), (10496, 20245), (13120, 16196)]