20921393760

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{489733}}^1$

素因数の和:489840

約数の個数: 96

約数和(自身を含む): 66643002720

約数和(自身を除く): 45721608960

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 80, 89, 96, 120, 160, 178, 240, 267, 356, 445, 480, 534, 712, 890, 1068, 1335, 1424, 1780, 2136, 2670, 2848, 3560, 4272, 5340, 7120, 8544, 10680, 14240, 21360, 42720, 489733, 979466, 1469199, 1958932, 2448665, 2938398, 3917864, 4897330, 5876796, 7345995, 7835728, 9794660, 11753592, 14691990, 15671456, 19589320, 23507184, 29383980, 39178640, 43586237, 47014368, 58767960, 78357280, 87172474, 117535920, 130758711, 174344948, 217931185, 235071840, 261517422, 348689896, 435862370, 523034844, 653793555, 697379792, 871724740, 1046069688, 1307587110, 1394759584, 1743449480, 2092139376, 2615174220, 3486898960, 4184278752, 5230348440, 6973797920, 10460696880, 20921393760]

約数ペア:

[(1, 20921393760), (2, 10460696880), (3, 6973797920), (4, 5230348440), (5, 4184278752), (6, 3486898960), (8, 2615174220), (10, 2092139376), (12, 1743449480), (15, 1394759584), (16, 1307587110), (20, 1046069688), (24, 871724740), (30, 697379792), (32, 653793555), (40, 523034844), (48, 435862370), (60, 348689896), (80, 261517422), (89, 235071840), (96, 217931185), (120, 174344948), (160, 130758711), (178, 117535920), (240, 87172474), (267, 78357280), (356, 58767960), (445, 47014368), (480, 43586237), (534, 39178640), (712, 29383980), (890, 23507184), (1068, 19589320), (1335, 15671456), (1424, 14691990), (1780, 11753592), (2136, 9794660), (2670, 7835728), (2848, 7345995), (3560, 5876796), (4272, 4897330), (5340, 3917864), (7120, 2938398), (8544, 2448665), (10680, 1958932), (14240, 1469199), (21360, 979466), (42720, 489733)]