180900900

素因数分解:

$2^2\times 3^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{149}}^1$

素因数の和:259

約数の個数: 216

約数和(自身を含む): 609336000

約数和(自身を除く): 428435100

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 25, 30, 36, 38, 45, 50, 57, 60, 71, 75, 76, 90, 95, 100, 114, 142, 149, 150, 171, 180, 190, 213, 225, 228, 284, 285, 298, 300, 342, 355, 380, 426, 447, 450, 475, 570, 596, 639, 684, 710, 745, 852, 855, 894, 900, 950, 1065, 1140, 1278, 1341, 1349, 1420, 1425, 1490, 1710, 1775, 1788, 1900, 2130, 2235, 2556, 2682, 2698, 2831, 2850, 2980, 3195, 3420, 3550, 3725, 4047, 4260, 4275, 4470, 5325, 5364, 5396, 5662, 5700, 6390, 6705, 6745, 7100, 7450, 8094, 8493, 8550, 8940, 10579, 10650, 11175, 11324, 12141, 12780, 13410, 13490, 14155, 14900, 15975, 16188, 16986, 17100, 20235, 21158, 21300, 22350, 24282, 25479, 26820, 26980, 28310, 31737, 31950, 33525, 33725, 33972, 40470, 42316, 42465, 44700, 48564, 50958, 52895, 56620, 60705, 63474, 63900, 67050, 67450, 70775, 80940, 84930, 95211, 101175, 101916, 105790, 121410, 126948, 127395, 134100, 134900, 141550, 158685, 169860, 190422, 201001, 202350, 211580, 212325, 242820, 254790, 264475, 283100, 303525, 317370, 380844, 402002, 404700, 424650, 476055, 509580, 528950, 603003, 607050, 634740, 636975, 793425, 804004, 849300, 952110, 1005005, 1057900, 1206006, 1214100, 1273950, 1586850, 1809009, 1904220, 2010010, 2380275, 2412012, 2547900, 3015015, 3173700, 3618018, 4020020, 4760550, 5025025, 6030030, 7236036, 9045045, 9521100, 10050050, 12060060, 15075075, 18090090, 20100100, 30150150, 36180180, 45225225, 60300300, 90450450, 180900900]

約数ペア:

[(1, 180900900), (2, 90450450), (3, 60300300), (4, 45225225), (5, 36180180), (6, 30150150), (9, 20100100), (10, 18090090), (12, 15075075), (15, 12060060), (18, 10050050), (19, 9521100), (20, 9045045), (25, 7236036), (30, 6030030), (36, 5025025), (38, 4760550), (45, 4020020), (50, 3618018), (57, 3173700), (60, 3015015), (71, 2547900), (75, 2412012), (76, 2380275), (90, 2010010), (95, 1904220), (100, 1809009), (114, 1586850), (142, 1273950), (149, 1214100), (150, 1206006), (171, 1057900), (180, 1005005), (190, 952110), (213, 849300), (225, 804004), (228, 793425), (284, 636975), (285, 634740), (298, 607050), (300, 603003), (342, 528950), (355, 509580), (380, 476055), (426, 424650), (447, 404700), (450, 402002), (475, 380844), (570, 317370), (596, 303525), (639, 283100), (684, 264475), (710, 254790), (745, 242820), (852, 212325), (855, 211580), (894, 202350), (900, 201001), (950, 190422), (1065, 169860), (1140, 158685), (1278, 141550), (1341, 134900), (1349, 134100), (1420, 127395), (1425, 126948), (1490, 121410), (1710, 105790), (1775, 101916), (1788, 101175), (1900, 95211), (2130, 84930), (2235, 80940), (2556, 70775), (2682, 67450), (2698, 67050), (2831, 63900), (2850, 63474), (2980, 60705), (3195, 56620), (3420, 52895), (3550, 50958), (3725, 48564), (4047, 44700), (4260, 42465), (4275, 42316), (4470, 40470), (5325, 33972), (5364, 33725), (5396, 33525), (5662, 31950), (5700, 31737), (6390, 28310), (6705, 26980), (6745, 26820), (7100, 25479), (7450, 24282), (8094, 22350), (8493, 21300), (8550, 21158), (8940, 20235), (10579, 17100), (10650, 16986), (11175, 16188), (11324, 15975), (12141, 14900), (12780, 14155), (13410, 13490)]