80820072

素因数分解:

$2^3\times 3^3\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{419}}^1$

素因数の和:500

約数の個数: 128

約数和(自身を含む): 241920000

約数和(自身を除く): 161099928

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 19, 24, 27, 36, 38, 47, 54, 57, 72, 76, 94, 108, 114, 141, 152, 171, 188, 216, 228, 282, 342, 376, 419, 423, 456, 513, 564, 684, 838, 846, 893, 1026, 1128, 1257, 1269, 1368, 1676, 1692, 1786, 2052, 2514, 2538, 2679, 3352, 3384, 3572, 3771, 4104, 5028, 5076, 5358, 7144, 7542, 7961, 8037, 10056, 10152, 10716, 11313, 15084, 15922, 16074, 19693, 21432, 22626, 23883, 24111, 30168, 31844, 32148, 39386, 45252, 47766, 48222, 59079, 63688, 64296, 71649, 78772, 90504, 95532, 96444, 118158, 143298, 157544, 177237, 191064, 192888, 214947, 236316, 286596, 354474, 374167, 429894, 472632, 531711, 573192, 708948, 748334, 859788, 1063422, 1122501, 1417896, 1496668, 1719576, 2126844, 2245002, 2993336, 3367503, 4253688, 4490004, 6735006, 8980008, 10102509, 13470012, 20205018, 26940024, 40410036, 80820072]

約数ペア:

[(1, 80820072), (2, 40410036), (3, 26940024), (4, 20205018), (6, 13470012), (8, 10102509), (9, 8980008), (12, 6735006), (18, 4490004), (19, 4253688), (24, 3367503), (27, 2993336), (36, 2245002), (38, 2126844), (47, 1719576), (54, 1496668), (57, 1417896), (72, 1122501), (76, 1063422), (94, 859788), (108, 748334), (114, 708948), (141, 573192), (152, 531711), (171, 472632), (188, 429894), (216, 374167), (228, 354474), (282, 286596), (342, 236316), (376, 214947), (419, 192888), (423, 191064), (456, 177237), (513, 157544), (564, 143298), (684, 118158), (838, 96444), (846, 95532), (893, 90504), (1026, 78772), (1128, 71649), (1257, 64296), (1269, 63688), (1368, 59079), (1676, 48222), (1692, 47766), (1786, 45252), (2052, 39386), (2514, 32148), (2538, 31844), (2679, 30168), (3352, 24111), (3384, 23883), (3572, 22626), (3771, 21432), (4104, 19693), (5028, 16074), (5076, 15922), (5358, 15084), (7144, 11313), (7542, 10716), (7961, 10152), (8037, 10056)]