20534398720

素因数分解:

$2^8\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1458409}}^1$

素因数の和:1458441

約数の個数: 72

約数和(自身を含む): 53657820720

約数和(自身を除く): 33123422000

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 128, 160, 176, 220, 256, 320, 352, 440, 640, 704, 880, 1280, 1408, 1760, 2816, 3520, 7040, 14080, 1458409, 2916818, 5833636, 7292045, 11667272, 14584090, 16042499, 23334544, 29168180, 32084998, 46669088, 58336360, 64169996, 80212495, 93338176, 116672720, 128339992, 160424990, 186676352, 233345440, 256679984, 320849980, 373352704, 466690880, 513359968, 641699960, 933381760, 1026719936, 1283399920, 1866763520, 2053439872, 2566799840, 4106879744, 5133599680, 10267199360, 20534398720]

約数ペア:

[(1, 20534398720), (2, 10267199360), (4, 5133599680), (5, 4106879744), (8, 2566799840), (10, 2053439872), (11, 1866763520), (16, 1283399920), (20, 1026719936), (22, 933381760), (32, 641699960), (40, 513359968), (44, 466690880), (55, 373352704), (64, 320849980), (80, 256679984), (88, 233345440), (110, 186676352), (128, 160424990), (160, 128339992), (176, 116672720), (220, 93338176), (256, 80212495), (320, 64169996), (352, 58336360), (440, 46669088), (640, 32084998), (704, 29168180), (880, 23334544), (1280, 16042499), (1408, 14584090), (1760, 11667272), (2816, 7292045), (3520, 5833636), (7040, 2916818), (14080, 1458409)]