13281760

素因数分解:

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

素因数の和:308

約数の個数: 96

約数和(自身を含む): 35108640

約数和(自身を除く): 21826880

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 19, 20, 32, 34, 38, 40, 68, 76, 80, 85, 95, 136, 152, 160, 170, 190, 257, 272, 304, 323, 340, 380, 514, 544, 608, 646, 680, 760, 1028, 1285, 1292, 1360, 1520, 1615, 2056, 2570, 2584, 2720, 3040, 3230, 4112, 4369, 4883, 5140, 5168, 6460, 8224, 8738, 9766, 10280, 10336, 12920, 17476, 19532, 20560, 21845, 24415, 25840, 34952, 39064, 41120, 43690, 48830, 51680, 69904, 78128, 83011, 87380, 97660, 139808, 156256, 166022, 174760, 195320, 332044, 349520, 390640, 415055, 664088, 699040, 781280, 830110, 1328176, 1660220, 2656352, 3320440, 6640880, 13281760]

約数ペア:

[(1, 13281760), (2, 6640880), (4, 3320440), (5, 2656352), (8, 1660220), (10, 1328176), (16, 830110), (17, 781280), (19, 699040), (20, 664088), (32, 415055), (34, 390640), (38, 349520), (40, 332044), (68, 195320), (76, 174760), (80, 166022), (85, 156256), (95, 139808), (136, 97660), (152, 87380), (160, 83011), (170, 78128), (190, 69904), (257, 51680), (272, 48830), (304, 43690), (323, 41120), (340, 39064), (380, 34952), (514, 25840), (544, 24415), (608, 21845), (646, 20560), (680, 19532), (760, 17476), (1028, 12920), (1285, 10336), (1292, 10280), (1360, 9766), (1520, 8738), (1615, 8224), (2056, 6460), (2570, 5168), (2584, 5140), (2720, 4883), (3040, 4369), (3230, 4112)]