399559992

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{379}}^1$

素因数の和:541

約数の個数: 128

約数和(自身を含む): 1123584000

約数和(自身を除く): 724024008

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 31, 39, 52, 62, 78, 93, 104, 109, 124, 156, 186, 218, 248, 312, 327, 372, 379, 403, 436, 654, 744, 758, 806, 872, 1137, 1209, 1308, 1417, 1516, 1612, 2274, 2418, 2616, 2834, 3032, 3224, 3379, 4251, 4548, 4836, 4927, 5668, 6758, 8502, 9096, 9672, 9854, 10137, 11336, 11749, 13516, 14781, 17004, 19708, 20274, 23498, 27032, 29562, 34008, 35247, 39416, 40548, 41311, 43927, 46996, 59124, 70494, 81096, 82622, 87854, 93992, 118248, 123933, 131781, 140988, 152737, 165244, 175708, 247866, 263562, 281976, 305474, 330488, 351416, 458211, 495732, 527124, 537043, 610948, 916422, 991464, 1054248, 1074086, 1221896, 1280641, 1611129, 1832844, 2148172, 2561282, 3222258, 3665688, 3841923, 4296344, 5122564, 6444516, 7683846, 10245128, 12889032, 15367692, 16648333, 30735384, 33296666, 49944999, 66593332, 99889998, 133186664, 199779996, 399559992]

約数ペア:

[(1, 399559992), (2, 199779996), (3, 133186664), (4, 99889998), (6, 66593332), (8, 49944999), (12, 33296666), (13, 30735384), (24, 16648333), (26, 15367692), (31, 12889032), (39, 10245128), (52, 7683846), (62, 6444516), (78, 5122564), (93, 4296344), (104, 3841923), (109, 3665688), (124, 3222258), (156, 2561282), (186, 2148172), (218, 1832844), (248, 1611129), (312, 1280641), (327, 1221896), (372, 1074086), (379, 1054248), (403, 991464), (436, 916422), (654, 610948), (744, 537043), (758, 527124), (806, 495732), (872, 458211), (1137, 351416), (1209, 330488), (1308, 305474), (1417, 281976), (1516, 263562), (1612, 247866), (2274, 175708), (2418, 165244), (2616, 152737), (2834, 140988), (3032, 131781), (3224, 123933), (3379, 118248), (4251, 93992), (4548, 87854), (4836, 82622), (4927, 81096), (5668, 70494), (6758, 59124), (8502, 46996), (9096, 43927), (9672, 41311), (9854, 40548), (10137, 39416), (11336, 35247), (11749, 34008), (13516, 29562), (14781, 27032), (17004, 23498), (19708, 20274)]