31927980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{4001}}^1$

素因数の和:4039

約数の個数: 96

約数和(自身を含む): 107573760

約数和(自身を除く): 75645780

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 19, 20, 21, 28, 30, 35, 38, 42, 57, 60, 70, 76, 84, 95, 105, 114, 133, 140, 190, 210, 228, 266, 285, 380, 399, 420, 532, 570, 665, 798, 1140, 1330, 1596, 1995, 2660, 3990, 4001, 7980, 8002, 12003, 16004, 20005, 24006, 28007, 40010, 48012, 56014, 60015, 76019, 80020, 84021, 112028, 120030, 140035, 152038, 168042, 228057, 240060, 280070, 304076, 336084, 380095, 420105, 456114, 532133, 560140, 760190, 840210, 912228, 1064266, 1140285, 1520380, 1596399, 1680420, 2128532, 2280570, 2660665, 3192798, 4561140, 5321330, 6385596, 7981995, 10642660, 15963990, 31927980]

約数ペア:

[(1, 31927980), (2, 15963990), (3, 10642660), (4, 7981995), (5, 6385596), (6, 5321330), (7, 4561140), (10, 3192798), (12, 2660665), (14, 2280570), (15, 2128532), (19, 1680420), (20, 1596399), (21, 1520380), (28, 1140285), (30, 1064266), (35, 912228), (38, 840210), (42, 760190), (57, 560140), (60, 532133), (70, 456114), (76, 420105), (84, 380095), (95, 336084), (105, 304076), (114, 280070), (133, 240060), (140, 228057), (190, 168042), (210, 152038), (228, 140035), (266, 120030), (285, 112028), (380, 84021), (399, 80020), (420, 76019), (532, 60015), (570, 56014), (665, 48012), (798, 40010), (1140, 28007), (1330, 24006), (1596, 20005), (1995, 16004), (2660, 12003), (3990, 8002), (4001, 7980)]