81173760

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{21139}}^1$

素因数の和:21163

約数の個数: 72

約数和(自身を含む): 259260960

約数和(自身を除く): 178087200

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 256, 320, 384, 480, 640, 768, 960, 1280, 1920, 3840, 21139, 42278, 63417, 84556, 105695, 126834, 169112, 211390, 253668, 317085, 338224, 422780, 507336, 634170, 676448, 845560, 1014672, 1268340, 1352896, 1691120, 2029344, 2536680, 2705792, 3382240, 4058688, 5073360, 5411584, 6764480, 8117376, 10146720, 13528960, 16234752, 20293440, 27057920, 40586880, 81173760]

約数ペア:

[(1, 81173760), (2, 40586880), (3, 27057920), (4, 20293440), (5, 16234752), (6, 13528960), (8, 10146720), (10, 8117376), (12, 6764480), (15, 5411584), (16, 5073360), (20, 4058688), (24, 3382240), (30, 2705792), (32, 2536680), (40, 2029344), (48, 1691120), (60, 1352896), (64, 1268340), (80, 1014672), (96, 845560), (120, 676448), (128, 634170), (160, 507336), (192, 422780), (240, 338224), (256, 317085), (320, 253668), (384, 211390), (480, 169112), (640, 126834), (768, 105695), (960, 84556), (1280, 63417), (1920, 42278), (3840, 21139)]