205867280

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{257}}^1$

素因数の和:337

約数の個数: 160

約数和(自身を含む): 552821760

約数和(自身を除く): 346954480

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 19, 20, 31, 34, 38, 40, 62, 68, 76, 80, 85, 95, 124, 136, 152, 155, 170, 190, 248, 257, 272, 304, 310, 323, 340, 380, 496, 514, 527, 589, 620, 646, 680, 760, 1028, 1054, 1178, 1240, 1285, 1292, 1360, 1520, 1615, 2056, 2108, 2356, 2480, 2570, 2584, 2635, 2945, 3230, 4112, 4216, 4369, 4712, 4883, 5140, 5168, 5270, 5890, 6460, 7967, 8432, 8738, 9424, 9766, 10013, 10280, 10540, 11780, 12920, 15934, 17476, 19532, 20026, 20560, 21080, 21845, 23560, 24415, 25840, 31868, 34952, 39064, 39835, 40052, 42160, 43690, 47120, 48830, 50065, 63736, 69904, 78128, 79670, 80104, 83011, 87380, 97660, 100130, 127472, 135439, 151373, 159340, 160208, 166022, 174760, 195320, 200260, 270878, 302746, 318680, 332044, 349520, 390640, 400520, 415055, 541756, 605492, 637360, 664088, 677195, 756865, 801040, 830110, 1083512, 1210984, 1328176, 1354390, 1513730, 1660220, 2167024, 2421968, 2573341, 2708780, 3027460, 3320440, 5146682, 5417560, 6054920, 6640880, 10293364, 10835120, 12109840, 12866705, 20586728, 25733410, 41173456, 51466820, 102933640, 205867280]

約数ペア:

[(1, 205867280), (2, 102933640), (4, 51466820), (5, 41173456), (8, 25733410), (10, 20586728), (16, 12866705), (17, 12109840), (19, 10835120), (20, 10293364), (31, 6640880), (34, 6054920), (38, 5417560), (40, 5146682), (62, 3320440), (68, 3027460), (76, 2708780), (80, 2573341), (85, 2421968), (95, 2167024), (124, 1660220), (136, 1513730), (152, 1354390), (155, 1328176), (170, 1210984), (190, 1083512), (248, 830110), (257, 801040), (272, 756865), (304, 677195), (310, 664088), (323, 637360), (340, 605492), (380, 541756), (496, 415055), (514, 400520), (527, 390640), (589, 349520), (620, 332044), (646, 318680), (680, 302746), (760, 270878), (1028, 200260), (1054, 195320), (1178, 174760), (1240, 166022), (1285, 160208), (1292, 159340), (1360, 151373), (1520, 135439), (1615, 127472), (2056, 100130), (2108, 97660), (2356, 87380), (2480, 83011), (2570, 80104), (2584, 79670), (2635, 78128), (2945, 69904), (3230, 63736), (4112, 50065), (4216, 48830), (4369, 47120), (4712, 43690), (4883, 42160), (5140, 40052), (5168, 39835), (5270, 39064), (5890, 34952), (6460, 31868), (7967, 25840), (8432, 24415), (8738, 23560), (9424, 21845), (9766, 21080), (10013, 20560), (10280, 20026), (10540, 19532), (11780, 17476), (12920, 15934)]