16781970

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{79}}^1\times {\mathrm{97}}^1$

素因数の和:259

約数の個数: 64

約数和(自身を含む): 41771520

約数和(自身を除く): 24989550

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 73, 79, 97, 146, 158, 194, 219, 237, 291, 365, 395, 438, 474, 485, 582, 730, 790, 970, 1095, 1185, 1455, 2190, 2370, 2910, 5767, 7081, 7663, 11534, 14162, 15326, 17301, 21243, 22989, 28835, 34602, 35405, 38315, 42486, 45978, 57670, 70810, 76630, 86505, 106215, 114945, 173010, 212430, 229890, 559399, 1118798, 1678197, 2796995, 3356394, 5593990, 8390985, 16781970]

約数ペア:

[(1, 16781970), (2, 8390985), (3, 5593990), (5, 3356394), (6, 2796995), (10, 1678197), (15, 1118798), (30, 559399), (73, 229890), (79, 212430), (97, 173010), (146, 114945), (158, 106215), (194, 86505), (219, 76630), (237, 70810), (291, 57670), (365, 45978), (395, 42486), (438, 38315), (474, 35405), (485, 34602), (582, 28835), (730, 22989), (790, 21243), (970, 17301), (1095, 15326), (1185, 14162), (1455, 11534), (2190, 7663), (2370, 7081), (2910, 5767)]