1621566160

素因数分解:

$2^4\times 5^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{4261}}^1$

素因数の和:4412

約数の個数: 80

約数和(自身を含む): 3881215872

約数和(自身を除く): 2259649712

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 67, 71, 80, 134, 142, 268, 284, 335, 355, 536, 568, 670, 710, 1072, 1136, 1340, 1420, 2680, 2840, 4261, 4757, 5360, 5680, 8522, 9514, 17044, 19028, 21305, 23785, 34088, 38056, 42610, 47570, 68176, 76112, 85220, 95140, 170440, 190280, 285487, 302531, 340880, 380560, 570974, 605062, 1141948, 1210124, 1427435, 1512655, 2283896, 2420248, 2854870, 3025310, 4567792, 4840496, 5709740, 6050620, 11419480, 12101240, 20269577, 22838960, 24202480, 40539154, 81078308, 101347885, 162156616, 202695770, 324313232, 405391540, 810783080, 1621566160]

約数ペア:

[(1, 1621566160), (2, 810783080), (4, 405391540), (5, 324313232), (8, 202695770), (10, 162156616), (16, 101347885), (20, 81078308), (40, 40539154), (67, 24202480), (71, 22838960), (80, 20269577), (134, 12101240), (142, 11419480), (268, 6050620), (284, 5709740), (335, 4840496), (355, 4567792), (536, 3025310), (568, 2854870), (670, 2420248), (710, 2283896), (1072, 1512655), (1136, 1427435), (1340, 1210124), (1420, 1141948), (2680, 605062), (2840, 570974), (4261, 380560), (4757, 340880), (5360, 302531), (5680, 285487), (8522, 190280), (9514, 170440), (17044, 95140), (19028, 85220), (21305, 76112), (23785, 68176), (34088, 47570), (38056, 42610)]