2851864375

素因数分解:

$5^4\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{127}}^1$

素因数の和:258

約数の個数: 80

約数和(自身を含む): 3966730240

約数和(自身を除く): 1114865865

約数列:

[1, 5, 19, 25, 31, 61, 95, 125, 127, 155, 305, 475, 589, 625, 635, 775, 1159, 1525, 1891, 2375, 2413, 2945, 3175, 3875, 3937, 5795, 7625, 7747, 9455, 11875, 12065, 14725, 15875, 19375, 19685, 28975, 35929, 38125, 38735, 47275, 60325, 73625, 74803, 79375, 98425, 144875, 147193, 179645, 193675, 236375, 240157, 301625, 368125, 374015, 492125, 724375, 735965, 898225, 968375, 1181875, 1200785, 1508125, 1870075, 2460625, 3679825, 4491125, 4562983, 4841875, 6003925, 9350375, 18399125, 22455625, 22814915, 30019625, 46751875, 91995625, 114074575, 150098125, 570372875, 2851864375]

約数ペア:

[(1, 2851864375), (5, 570372875), (19, 150098125), (25, 114074575), (31, 91995625), (61, 46751875), (95, 30019625), (125, 22814915), (127, 22455625), (155, 18399125), (305, 9350375), (475, 6003925), (589, 4841875), (625, 4562983), (635, 4491125), (775, 3679825), (1159, 2460625), (1525, 1870075), (1891, 1508125), (2375, 1200785), (2413, 1181875), (2945, 968375), (3175, 898225), (3875, 735965), (3937, 724375), (5795, 492125), (7625, 374015), (7747, 368125), (9455, 301625), (11875, 240157), (12065, 236375), (14725, 193675), (15875, 179645), (19375, 147193), (19685, 144875), (28975, 98425), (35929, 79375), (38125, 74803), (38735, 73625), (47275, 60325)]