20403780838

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{199}}^1\times {\mathrm{16759}}^1$

素因数の和:17009

約数の個数: 64

約数和(自身を含む): 38615040000

約数和(自身を除く): 18211259162

約数列:

[1, 2, 7, 14, 19, 23, 38, 46, 133, 161, 199, 266, 322, 398, 437, 874, 1393, 2786, 3059, 3781, 4577, 6118, 7562, 9154, 16759, 26467, 32039, 33518, 52934, 64078, 86963, 117313, 173926, 234626, 318421, 385457, 608741, 636842, 770914, 1217482, 2228947, 2698199, 3335041, 4457894, 5396398, 6670082, 7323683, 14647366, 23345287, 46690574, 51265781, 63365779, 76705943, 102531562, 126731558, 153411886, 443560453, 536941601, 887120906, 1073883202, 1457412917, 2914825834, 10201890419, 20403780838]

約数ペア:

[(1, 20403780838), (2, 10201890419), (7, 2914825834), (14, 1457412917), (19, 1073883202), (23, 887120906), (38, 536941601), (46, 443560453), (133, 153411886), (161, 126731558), (199, 102531562), (266, 76705943), (322, 63365779), (398, 51265781), (437, 46690574), (874, 23345287), (1393, 14647366), (2786, 7323683), (3059, 6670082), (3781, 5396398), (4577, 4457894), (6118, 3335041), (7562, 2698199), (9154, 2228947), (16759, 1217482), (26467, 770914), (32039, 636842), (33518, 608741), (52934, 385457), (64078, 318421), (86963, 234626), (117313, 173926)]