20946571828

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{260387}}^1$

素因数の和:260441

約数の個数: 72

約数和(自身を含む): 48032212032

約数和(自身を除く): 27085640204

約数列:

[1, 2, 4, 7, 13, 14, 17, 26, 28, 34, 52, 68, 91, 119, 169, 182, 221, 238, 338, 364, 442, 476, 676, 884, 1183, 1547, 2366, 2873, 3094, 4732, 5746, 6188, 11492, 20111, 40222, 80444, 260387, 520774, 1041548, 1822709, 3385031, 3645418, 4426579, 6770062, 7290836, 8853158, 13540124, 17706316, 23695217, 30986053, 44005403, 47390434, 57545527, 61972106, 88010806, 94780868, 115091054, 123944212, 176021612, 230182108, 308037821, 402818689, 616075642, 748091851, 805637378, 1232151284, 1496183702, 1611274756, 2992367404, 5236642957, 10473285914, 20946571828]

約数ペア:

[(1, 20946571828), (2, 10473285914), (4, 5236642957), (7, 2992367404), (13, 1611274756), (14, 1496183702), (17, 1232151284), (26, 805637378), (28, 748091851), (34, 616075642), (52, 402818689), (68, 308037821), (91, 230182108), (119, 176021612), (169, 123944212), (182, 115091054), (221, 94780868), (238, 88010806), (338, 61972106), (364, 57545527), (442, 47390434), (476, 44005403), (676, 30986053), (884, 23695217), (1183, 17706316), (1547, 13540124), (2366, 8853158), (2873, 7290836), (3094, 6770062), (4732, 4426579), (5746, 3645418), (6188, 3385031), (11492, 1822709), (20111, 1041548), (40222, 520774), (80444, 260387)]