15963990

素因数分解:

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

素因数の和:4037

約数の個数: 64

約数和(自身を含む): 46103040

約数和(自身を除く): 30139050

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 19, 21, 30, 35, 38, 42, 57, 70, 95, 105, 114, 133, 190, 210, 266, 285, 399, 570, 665, 798, 1330, 1995, 3990, 4001, 8002, 12003, 20005, 24006, 28007, 40010, 56014, 60015, 76019, 84021, 120030, 140035, 152038, 168042, 228057, 280070, 380095, 420105, 456114, 532133, 760190, 840210, 1064266, 1140285, 1596399, 2280570, 2660665, 3192798, 5321330, 7981995, 15963990]

約数ペア:

[(1, 15963990), (2, 7981995), (3, 5321330), (5, 3192798), (6, 2660665), (7, 2280570), (10, 1596399), (14, 1140285), (15, 1064266), (19, 840210), (21, 760190), (30, 532133), (35, 456114), (38, 420105), (42, 380095), (57, 280070), (70, 228057), (95, 168042), (105, 152038), (114, 140035), (133, 120030), (190, 84021), (210, 76019), (266, 60015), (285, 56014), (399, 40010), (570, 28007), (665, 24006), (798, 20005), (1330, 12003), (1995, 8002), (3990, 4001)]