16837990

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{401}}^1$

素因数の和:457

約数の個数: 64

約数和(自身を含む): 36469440

約数和(自身を除く): 19631450

約数列:

[1, 2, 5, 10, 13, 17, 19, 26, 34, 38, 65, 85, 95, 130, 170, 190, 221, 247, 323, 401, 442, 494, 646, 802, 1105, 1235, 1615, 2005, 2210, 2470, 3230, 4010, 4199, 5213, 6817, 7619, 8398, 10426, 13634, 15238, 20995, 26065, 34085, 38095, 41990, 52130, 68170, 76190, 88621, 99047, 129523, 177242, 198094, 259046, 443105, 495235, 647615, 886210, 990470, 1295230, 1683799, 3367598, 8418995, 16837990]

約数ペア:

[(1, 16837990), (2, 8418995), (5, 3367598), (10, 1683799), (13, 1295230), (17, 990470), (19, 886210), (26, 647615), (34, 495235), (38, 443105), (65, 259046), (85, 198094), (95, 177242), (130, 129523), (170, 99047), (190, 88621), (221, 76190), (247, 68170), (323, 52130), (401, 41990), (442, 38095), (494, 34085), (646, 26065), (802, 20995), (1105, 15238), (1235, 13634), (1615, 10426), (2005, 8398), (2210, 7619), (2470, 6817), (3230, 5213), (4010, 4199)]