331348780

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{131}}^1$

素因数の和:272

約数の個数: 144

約数和(自身を含む): 853221600

約数和(自身を除く): 521872820

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 49, 58, 70, 89, 98, 116, 131, 140, 145, 178, 196, 203, 245, 262, 290, 356, 406, 445, 490, 524, 580, 623, 655, 812, 890, 917, 980, 1015, 1246, 1310, 1421, 1780, 1834, 2030, 2492, 2581, 2620, 2842, 3115, 3668, 3799, 4060, 4361, 4585, 5162, 5684, 6230, 6419, 7105, 7598, 8722, 9170, 10324, 11659, 12460, 12838, 12905, 14210, 15196, 17444, 18067, 18340, 18995, 21805, 23318, 25676, 25810, 26593, 28420, 32095, 36134, 37990, 43610, 46636, 51620, 53186, 58295, 64190, 72268, 75980, 81613, 87220, 90335, 106372, 116590, 126469, 128380, 132965, 163226, 180670, 186151, 233180, 252938, 265930, 326452, 338111, 361340, 372302, 408065, 505876, 531860, 571291, 632345, 676222, 744604, 816130, 930755, 1142582, 1264690, 1352444, 1632260, 1690555, 1861510, 2285164, 2366777, 2529380, 2856455, 3381110, 3723020, 4733554, 5712910, 6762220, 9467108, 11425820, 11833885, 16567439, 23667770, 33134878, 47335540, 66269756, 82837195, 165674390, 331348780]

約数ペア:

[(1, 331348780), (2, 165674390), (4, 82837195), (5, 66269756), (7, 47335540), (10, 33134878), (14, 23667770), (20, 16567439), (28, 11833885), (29, 11425820), (35, 9467108), (49, 6762220), (58, 5712910), (70, 4733554), (89, 3723020), (98, 3381110), (116, 2856455), (131, 2529380), (140, 2366777), (145, 2285164), (178, 1861510), (196, 1690555), (203, 1632260), (245, 1352444), (262, 1264690), (290, 1142582), (356, 930755), (406, 816130), (445, 744604), (490, 676222), (524, 632345), (580, 571291), (623, 531860), (655, 505876), (812, 408065), (890, 372302), (917, 361340), (980, 338111), (1015, 326452), (1246, 265930), (1310, 252938), (1421, 233180), (1780, 186151), (1834, 180670), (2030, 163226), (2492, 132965), (2581, 128380), (2620, 126469), (2842, 116590), (3115, 106372), (3668, 90335), (3799, 87220), (4060, 81613), (4361, 75980), (4585, 72268), (5162, 64190), (5684, 58295), (6230, 53186), (6419, 51620), (7105, 46636), (7598, 43610), (8722, 37990), (9170, 36134), (10324, 32095), (11659, 28420), (12460, 26593), (12838, 25810), (12905, 25676), (14210, 23318), (15196, 21805), (17444, 18995), (18067, 18340)]