78400260

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{25621}}^1$

素因数の和:25653

約数の個数: 72

約数和(自身を含む): 251813016

約数和(自身を除く): 173412756

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 30, 34, 36, 45, 51, 60, 68, 85, 90, 102, 153, 170, 180, 204, 255, 306, 340, 510, 612, 765, 1020, 1530, 3060, 25621, 51242, 76863, 102484, 128105, 153726, 230589, 256210, 307452, 384315, 435557, 461178, 512420, 768630, 871114, 922356, 1152945, 1306671, 1537260, 1742228, 2177785, 2305890, 2613342, 3920013, 4355570, 4611780, 5226684, 6533355, 7840026, 8711140, 13066710, 15680052, 19600065, 26133420, 39200130, 78400260]

約数ペア:

[(1, 78400260), (2, 39200130), (3, 26133420), (4, 19600065), (5, 15680052), (6, 13066710), (9, 8711140), (10, 7840026), (12, 6533355), (15, 5226684), (17, 4611780), (18, 4355570), (20, 3920013), (30, 2613342), (34, 2305890), (36, 2177785), (45, 1742228), (51, 1537260), (60, 1306671), (68, 1152945), (85, 922356), (90, 871114), (102, 768630), (153, 512420), (170, 461178), (180, 435557), (204, 384315), (255, 307452), (306, 256210), (340, 230589), (510, 153726), (612, 128105), (765, 102484), (1020, 76863), (1530, 51242), (3060, 25621)]