615006820

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{103}}^1\times {\mathrm{827}}^1$

素因数の和:977

約数の個数: 72

約数和(自身を含む): 1377964224

約数和(自身を除く): 762957404

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 103, 190, 206, 361, 380, 412, 515, 722, 827, 1030, 1444, 1654, 1805, 1957, 2060, 3308, 3610, 3914, 4135, 7220, 7828, 8270, 9785, 15713, 16540, 19570, 31426, 37183, 39140, 62852, 74366, 78565, 85181, 148732, 157130, 170362, 185915, 298547, 314260, 340724, 371830, 425905, 597094, 743660, 851810, 1194188, 1492735, 1618439, 1703620, 2985470, 3236878, 5970940, 6473756, 8092195, 16184390, 30750341, 32368780, 61500682, 123001364, 153751705, 307503410, 615006820]

約数ペア:

[(1, 615006820), (2, 307503410), (4, 153751705), (5, 123001364), (10, 61500682), (19, 32368780), (20, 30750341), (38, 16184390), (76, 8092195), (95, 6473756), (103, 5970940), (190, 3236878), (206, 2985470), (361, 1703620), (380, 1618439), (412, 1492735), (515, 1194188), (722, 851810), (827, 743660), (1030, 597094), (1444, 425905), (1654, 371830), (1805, 340724), (1957, 314260), (2060, 298547), (3308, 185915), (3610, 170362), (3914, 157130), (4135, 148732), (7220, 85181), (7828, 78565), (8270, 74366), (9785, 62852), (15713, 39140), (16540, 37183), (19570, 31426)]