80905040

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1$

素因数の和:181

約数の個数: 160

約数和(自身を含む): 218557440

約数和(自身を除く): 137652400

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 19, 20, 31, 34, 38, 40, 62, 68, 76, 80, 85, 95, 101, 124, 136, 152, 155, 170, 190, 202, 248, 272, 304, 310, 323, 340, 380, 404, 496, 505, 527, 589, 620, 646, 680, 760, 808, 1010, 1054, 1178, 1240, 1292, 1360, 1520, 1615, 1616, 1717, 1919, 2020, 2108, 2356, 2480, 2584, 2635, 2945, 3131, 3230, 3434, 3838, 4040, 4216, 4712, 5168, 5270, 5890, 6262, 6460, 6868, 7676, 8080, 8432, 8585, 9424, 9595, 10013, 10540, 11780, 12524, 12920, 13736, 15352, 15655, 17170, 19190, 20026, 21080, 23560, 25048, 25840, 27472, 30704, 31310, 32623, 34340, 38380, 40052, 42160, 47120, 50065, 50096, 53227, 59489, 62620, 65246, 68680, 76760, 80104, 100130, 106454, 118978, 125240, 130492, 137360, 153520, 160208, 163115, 200260, 212908, 237956, 250480, 260984, 266135, 297445, 326230, 400520, 425816, 475912, 521968, 532270, 594890, 652460, 801040, 851632, 951824, 1011313, 1064540, 1189780, 1304920, 2022626, 2129080, 2379560, 2609840, 4045252, 4258160, 4759120, 5056565, 8090504, 10113130, 16181008, 20226260, 40452520, 80905040]

約数ペア:

[(1, 80905040), (2, 40452520), (4, 20226260), (5, 16181008), (8, 10113130), (10, 8090504), (16, 5056565), (17, 4759120), (19, 4258160), (20, 4045252), (31, 2609840), (34, 2379560), (38, 2129080), (40, 2022626), (62, 1304920), (68, 1189780), (76, 1064540), (80, 1011313), (85, 951824), (95, 851632), (101, 801040), (124, 652460), (136, 594890), (152, 532270), (155, 521968), (170, 475912), (190, 425816), (202, 400520), (248, 326230), (272, 297445), (304, 266135), (310, 260984), (323, 250480), (340, 237956), (380, 212908), (404, 200260), (496, 163115), (505, 160208), (527, 153520), (589, 137360), (620, 130492), (646, 125240), (680, 118978), (760, 106454), (808, 100130), (1010, 80104), (1054, 76760), (1178, 68680), (1240, 65246), (1292, 62620), (1360, 59489), (1520, 53227), (1615, 50096), (1616, 50065), (1717, 47120), (1919, 42160), (2020, 40052), (2108, 38380), (2356, 34340), (2480, 32623), (2584, 31310), (2635, 30704), (2945, 27472), (3131, 25840), (3230, 25048), (3434, 23560), (3838, 21080), (4040, 20026), (4216, 19190), (4712, 17170), (5168, 15655), (5270, 15352), (5890, 13736), (6262, 12920), (6460, 12524), (6868, 11780), (7676, 10540), (8080, 10013), (8432, 9595), (8585, 9424)]