20344518160

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{139}}^1\times {\mathrm{44623}}^1$

素因数の和:44816

約数の個数: 80

約数和(自身を含む): 48804376320

約数和(自身を除く): 28459858160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 139, 164, 205, 278, 328, 410, 556, 656, 695, 820, 1112, 1390, 1640, 2224, 2780, 3280, 5560, 5699, 11120, 11398, 22796, 28495, 44623, 45592, 56990, 89246, 91184, 113980, 178492, 223115, 227960, 356984, 446230, 455920, 713968, 892460, 1784920, 1829543, 3569840, 3659086, 6202597, 7318172, 9147715, 12405194, 14636344, 18295430, 24810388, 29272688, 31012985, 36590860, 49620776, 62025970, 73181720, 99241552, 124051940, 146363440, 248103880, 254306477, 496207760, 508612954, 1017225908, 1271532385, 2034451816, 2543064770, 4068903632, 5086129540, 10172259080, 20344518160]

約数ペア:

[(1, 20344518160), (2, 10172259080), (4, 5086129540), (5, 4068903632), (8, 2543064770), (10, 2034451816), (16, 1271532385), (20, 1017225908), (40, 508612954), (41, 496207760), (80, 254306477), (82, 248103880), (139, 146363440), (164, 124051940), (205, 99241552), (278, 73181720), (328, 62025970), (410, 49620776), (556, 36590860), (656, 31012985), (695, 29272688), (820, 24810388), (1112, 18295430), (1390, 14636344), (1640, 12405194), (2224, 9147715), (2780, 7318172), (3280, 6202597), (5560, 3659086), (5699, 3569840), (11120, 1829543), (11398, 1784920), (22796, 892460), (28495, 713968), (44623, 455920), (45592, 446230), (56990, 356984), (89246, 227960), (91184, 223115), (113980, 178492)]