1561491900

素因数分解:

$2^2\times 3^2\times 5^2\times {\mathrm{73}}^1\times {\mathrm{23767}}^1$

素因数の和:23860

約数の個数: 108

約数和(自身を含む): 4961665072

約数和(自身を除く): 3400173172

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 30, 36, 45, 50, 60, 73, 75, 90, 100, 146, 150, 180, 219, 225, 292, 300, 365, 438, 450, 657, 730, 876, 900, 1095, 1314, 1460, 1825, 2190, 2628, 3285, 3650, 4380, 5475, 6570, 7300, 10950, 13140, 16425, 21900, 23767, 32850, 47534, 65700, 71301, 95068, 118835, 142602, 213903, 237670, 285204, 356505, 427806, 475340, 594175, 713010, 855612, 1069515, 1188350, 1426020, 1734991, 1782525, 2139030, 2376700, 3469982, 3565050, 4278060, 5204973, 5347575, 6939964, 7130100, 8674955, 10409946, 10695150, 15614919, 17349910, 20819892, 21390300, 26024865, 31229838, 34699820, 43374775, 52049730, 62459676, 78074595, 86749550, 104099460, 130124325, 156149190, 173499100, 260248650, 312298380, 390372975, 520497300, 780745950, 1561491900]

約数ペア:

[(1, 1561491900), (2, 780745950), (3, 520497300), (4, 390372975), (5, 312298380), (6, 260248650), (9, 173499100), (10, 156149190), (12, 130124325), (15, 104099460), (18, 86749550), (20, 78074595), (25, 62459676), (30, 52049730), (36, 43374775), (45, 34699820), (50, 31229838), (60, 26024865), (73, 21390300), (75, 20819892), (90, 17349910), (100, 15614919), (146, 10695150), (150, 10409946), (180, 8674955), (219, 7130100), (225, 6939964), (292, 5347575), (300, 5204973), (365, 4278060), (438, 3565050), (450, 3469982), (657, 2376700), (730, 2139030), (876, 1782525), (900, 1734991), (1095, 1426020), (1314, 1188350), (1460, 1069515), (1825, 855612), (2190, 713010), (2628, 594175), (3285, 475340), (3650, 427806), (4380, 356505), (5475, 285204), (6570, 237670), (7300, 213903), (10950, 142602), (13140, 118835), (16425, 95068), (21900, 71301), (23767, 65700), (32850, 47534)]