25676491520

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{8191}}^1$

素因数の和:8322

約数の個数: 144

約数和(自身を含む): 64298680320

約数和(自身を除く): 38622188800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 79, 80, 124, 128, 155, 158, 160, 248, 256, 310, 316, 320, 395, 496, 620, 632, 640, 790, 992, 1240, 1264, 1280, 1580, 1984, 2449, 2480, 2528, 3160, 3968, 4898, 4960, 5056, 6320, 7936, 8191, 9796, 9920, 10112, 12245, 12640, 16382, 19592, 19840, 20224, 24490, 25280, 32764, 39184, 39680, 40955, 48980, 50560, 65528, 78368, 81910, 97960, 101120, 131056, 156736, 163820, 195920, 253921, 262112, 313472, 327640, 391840, 507842, 524224, 626944, 647089, 655280, 783680, 1015684, 1048448, 1269605, 1294178, 1310560, 1567360, 2031368, 2096896, 2539210, 2588356, 2621120, 3134720, 3235445, 4062736, 5078420, 5176712, 5242240, 6470890, 8125472, 10156840, 10353424, 10484480, 12941780, 16250944, 20059759, 20313680, 20706848, 25883560, 32501888, 40119518, 40627360, 41413696, 51767120, 65003776, 80239036, 81254720, 82827392, 100298795, 103534240, 160478072, 162509440, 165654784, 200597590, 207068480, 320956144, 325018880, 401195180, 414136960, 641912288, 802390360, 828273920, 1283824576, 1604780720, 2567649152, 3209561440, 5135298304, 6419122880, 12838245760, 25676491520]

約数ペア:

[(1, 25676491520), (2, 12838245760), (4, 6419122880), (5, 5135298304), (8, 3209561440), (10, 2567649152), (16, 1604780720), (20, 1283824576), (31, 828273920), (32, 802390360), (40, 641912288), (62, 414136960), (64, 401195180), (79, 325018880), (80, 320956144), (124, 207068480), (128, 200597590), (155, 165654784), (158, 162509440), (160, 160478072), (248, 103534240), (256, 100298795), (310, 82827392), (316, 81254720), (320, 80239036), (395, 65003776), (496, 51767120), (620, 41413696), (632, 40627360), (640, 40119518), (790, 32501888), (992, 25883560), (1240, 20706848), (1264, 20313680), (1280, 20059759), (1580, 16250944), (1984, 12941780), (2449, 10484480), (2480, 10353424), (2528, 10156840), (3160, 8125472), (3968, 6470890), (4898, 5242240), (4960, 5176712), (5056, 5078420), (6320, 4062736), (7936, 3235445), (8191, 3134720), (9796, 2621120), (9920, 2588356), (10112, 2539210), (12245, 2096896), (12640, 2031368), (16382, 1567360), (19592, 1310560), (19840, 1294178), (20224, 1269605), (24490, 1048448), (25280, 1015684), (32764, 783680), (39184, 655280), (39680, 647089), (40955, 626944), (48980, 524224), (50560, 507842), (65528, 391840), (78368, 327640), (81910, 313472), (97960, 262112), (101120, 253921), (131056, 195920), (156736, 163820)]