20813771008

素因数分解:

$2^8\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{223}}^1\times {\mathrm{619}}^1$

素因数の和:908

約数の個数: 144

約数和(自身を含む): 45419315200

約数和(自身を除く): 24605544192

約数列:

[1, 2, 4, 8, 16, 19, 31, 32, 38, 62, 64, 76, 124, 128, 152, 223, 248, 256, 304, 446, 496, 589, 608, 619, 892, 992, 1178, 1216, 1238, 1784, 1984, 2356, 2432, 2476, 3568, 3968, 4237, 4712, 4864, 4952, 6913, 7136, 7936, 8474, 9424, 9904, 11761, 13826, 14272, 16948, 18848, 19189, 19808, 23522, 27652, 28544, 33896, 37696, 38378, 39616, 47044, 55304, 57088, 67792, 75392, 76756, 79232, 94088, 110608, 131347, 135584, 138037, 150784, 153512, 158464, 188176, 221216, 262694, 271168, 276074, 307024, 364591, 376352, 442432, 525388, 542336, 552148, 614048, 729182, 752704, 884864, 1050776, 1084672, 1104296, 1228096, 1458364, 1505408, 1769728, 2101552, 2208592, 2456192, 2622703, 2916728, 3010816, 4203104, 4279147, 4417184, 4912384, 5245406, 5833456, 8406208, 8558294, 8834368, 10490812, 11666912, 16812416, 17116588, 17668736, 20981624, 23333824, 33624832, 34233176, 35337472, 41963248, 46667648, 68466352, 81303793, 83926496, 93335296, 136932704, 162607586, 167852992, 273865408, 325215172, 335705984, 547730816, 650430344, 671411968, 1095461632, 1300860688, 2601721376, 5203442752, 10406885504, 20813771008]

約数ペア:

[(1, 20813771008), (2, 10406885504), (4, 5203442752), (8, 2601721376), (16, 1300860688), (19, 1095461632), (31, 671411968), (32, 650430344), (38, 547730816), (62, 335705984), (64, 325215172), (76, 273865408), (124, 167852992), (128, 162607586), (152, 136932704), (223, 93335296), (248, 83926496), (256, 81303793), (304, 68466352), (446, 46667648), (496, 41963248), (589, 35337472), (608, 34233176), (619, 33624832), (892, 23333824), (992, 20981624), (1178, 17668736), (1216, 17116588), (1238, 16812416), (1784, 11666912), (1984, 10490812), (2356, 8834368), (2432, 8558294), (2476, 8406208), (3568, 5833456), (3968, 5245406), (4237, 4912384), (4712, 4417184), (4864, 4279147), (4952, 4203104), (6913, 3010816), (7136, 2916728), (7936, 2622703), (8474, 2456192), (9424, 2208592), (9904, 2101552), (11761, 1769728), (13826, 1505408), (14272, 1458364), (16948, 1228096), (18848, 1104296), (19189, 1084672), (19808, 1050776), (23522, 884864), (27652, 752704), (28544, 729182), (33896, 614048), (37696, 552148), (38378, 542336), (39616, 525388), (47044, 442432), (55304, 376352), (57088, 364591), (67792, 307024), (75392, 276074), (76756, 271168), (79232, 262694), (94088, 221216), (110608, 188176), (131347, 158464), (135584, 153512), (138037, 150784)]