388614980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{811}}^1$

素因数の和:949

約数の個数: 96

約数和(自身を含む): 935813760

約数和(自身を除く): 547198780

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 97, 130, 190, 194, 247, 260, 380, 388, 485, 494, 811, 970, 988, 1235, 1261, 1622, 1843, 1940, 2470, 2522, 3244, 3686, 4055, 4940, 5044, 6305, 7372, 8110, 9215, 10543, 12610, 15409, 16220, 18430, 21086, 23959, 25220, 30818, 36860, 42172, 47918, 52715, 61636, 77045, 78667, 95836, 105430, 119795, 154090, 157334, 200317, 210860, 239590, 308180, 314668, 393335, 400634, 479180, 786670, 801268, 1001585, 1022671, 1494673, 1573340, 2003170, 2045342, 2989346, 4006340, 4090684, 5113355, 5978692, 7473365, 10226710, 14946730, 19430749, 20453420, 29893460, 38861498, 77722996, 97153745, 194307490, 388614980]

約数ペア:

[(1, 388614980), (2, 194307490), (4, 97153745), (5, 77722996), (10, 38861498), (13, 29893460), (19, 20453420), (20, 19430749), (26, 14946730), (38, 10226710), (52, 7473365), (65, 5978692), (76, 5113355), (95, 4090684), (97, 4006340), (130, 2989346), (190, 2045342), (194, 2003170), (247, 1573340), (260, 1494673), (380, 1022671), (388, 1001585), (485, 801268), (494, 786670), (811, 479180), (970, 400634), (988, 393335), (1235, 314668), (1261, 308180), (1622, 239590), (1843, 210860), (1940, 200317), (2470, 157334), (2522, 154090), (3244, 119795), (3686, 105430), (4055, 95836), (4940, 78667), (5044, 77045), (6305, 61636), (7372, 52715), (8110, 47918), (9215, 42172), (10543, 36860), (12610, 30818), (15409, 25220), (16220, 23959), (18430, 21086)]