128451780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^2\times {\mathrm{71}}^1$

素因数の和:151

約数の個数: 216

約数和(自身を含む): 434790720

約数和(自身を除く): 306338940

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 23, 30, 36, 38, 45, 46, 57, 60, 69, 71, 76, 90, 92, 95, 114, 115, 138, 142, 171, 180, 190, 207, 213, 228, 230, 276, 284, 285, 342, 345, 355, 380, 414, 426, 437, 460, 529, 570, 639, 684, 690, 710, 828, 852, 855, 874, 1035, 1058, 1065, 1140, 1278, 1311, 1349, 1380, 1420, 1587, 1633, 1710, 1748, 2070, 2116, 2130, 2185, 2556, 2622, 2645, 2698, 3174, 3195, 3266, 3420, 3933, 4047, 4140, 4260, 4370, 4761, 4899, 5244, 5290, 5396, 6348, 6390, 6532, 6555, 6745, 7866, 7935, 8094, 8165, 8740, 9522, 9798, 10051, 10580, 12141, 12780, 13110, 13490, 14697, 15732, 15870, 16188, 16330, 19044, 19596, 19665, 20102, 20235, 23805, 24282, 24495, 26220, 26980, 29394, 30153, 31027, 31740, 32660, 37559, 39330, 40204, 40470, 47610, 48564, 48990, 50255, 58788, 60306, 60705, 62054, 73485, 75118, 78660, 80940, 90459, 93081, 95220, 97980, 100510, 112677, 120612, 121410, 124108, 146970, 150236, 150765, 155135, 180918, 186162, 187795, 201020, 225354, 242820, 279243, 293940, 301530, 310270, 338031, 361836, 372324, 375590, 450708, 452295, 465405, 558486, 563385, 603060, 620540, 676062, 713621, 751180, 904590, 930810, 1116972, 1126770, 1352124, 1396215, 1427242, 1690155, 1809180, 1861620, 2140863, 2253540, 2792430, 2854484, 3380310, 3568105, 4281726, 5584860, 6422589, 6760620, 7136210, 8563452, 10704315, 12845178, 14272420, 21408630, 25690356, 32112945, 42817260, 64225890, 128451780]

約数ペア:

[(1, 128451780), (2, 64225890), (3, 42817260), (4, 32112945), (5, 25690356), (6, 21408630), (9, 14272420), (10, 12845178), (12, 10704315), (15, 8563452), (18, 7136210), (19, 6760620), (20, 6422589), (23, 5584860), (30, 4281726), (36, 3568105), (38, 3380310), (45, 2854484), (46, 2792430), (57, 2253540), (60, 2140863), (69, 1861620), (71, 1809180), (76, 1690155), (90, 1427242), (92, 1396215), (95, 1352124), (114, 1126770), (115, 1116972), (138, 930810), (142, 904590), (171, 751180), (180, 713621), (190, 676062), (207, 620540), (213, 603060), (228, 563385), (230, 558486), (276, 465405), (284, 452295), (285, 450708), (342, 375590), (345, 372324), (355, 361836), (380, 338031), (414, 310270), (426, 301530), (437, 293940), (460, 279243), (529, 242820), (570, 225354), (639, 201020), (684, 187795), (690, 186162), (710, 180918), (828, 155135), (852, 150765), (855, 150236), (874, 146970), (1035, 124108), (1058, 121410), (1065, 120612), (1140, 112677), (1278, 100510), (1311, 97980), (1349, 95220), (1380, 93081), (1420, 90459), (1587, 80940), (1633, 78660), (1710, 75118), (1748, 73485), (2070, 62054), (2116, 60705), (2130, 60306), (2185, 58788), (2556, 50255), (2622, 48990), (2645, 48564), (2698, 47610), (3174, 40470), (3195, 40204), (3266, 39330), (3420, 37559), (3933, 32660), (4047, 31740), (4140, 31027), (4260, 30153), (4370, 29394), (4761, 26980), (4899, 26220), (5244, 24495), (5290, 24282), (5396, 23805), (6348, 20235), (6390, 20102), (6532, 19665), (6555, 19596), (6745, 19044), (7866, 16330), (7935, 16188), (8094, 15870), (8165, 15732), (8740, 14697), (9522, 13490), (9798, 13110), (10051, 12780), (10580, 12141)]