221727720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{1231}}^1$

素因数の和:1343

約数の個数: 128

約数和(自身を含む): 709632000

約数和(自身を除く): 487904280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 30, 38, 40, 57, 60, 76, 79, 95, 114, 120, 152, 158, 190, 228, 237, 285, 316, 380, 395, 456, 474, 570, 632, 760, 790, 948, 1140, 1185, 1231, 1501, 1580, 1896, 2280, 2370, 2462, 3002, 3160, 3693, 4503, 4740, 4924, 6004, 6155, 7386, 7505, 9006, 9480, 9848, 12008, 12310, 14772, 15010, 18012, 18465, 22515, 23389, 24620, 29544, 30020, 36024, 36930, 45030, 46778, 49240, 60040, 70167, 73860, 90060, 93556, 97249, 116945, 140334, 147720, 180120, 187112, 194498, 233890, 280668, 291747, 350835, 388996, 467780, 486245, 561336, 583494, 701670, 777992, 935560, 972490, 1166988, 1403340, 1458735, 1847731, 1944980, 2333976, 2806680, 2917470, 3695462, 3889960, 5543193, 5834940, 7390924, 9238655, 11086386, 11669880, 14781848, 18477310, 22172772, 27715965, 36954620, 44345544, 55431930, 73909240, 110863860, 221727720]

約数ペア:

[(1, 221727720), (2, 110863860), (3, 73909240), (4, 55431930), (5, 44345544), (6, 36954620), (8, 27715965), (10, 22172772), (12, 18477310), (15, 14781848), (19, 11669880), (20, 11086386), (24, 9238655), (30, 7390924), (38, 5834940), (40, 5543193), (57, 3889960), (60, 3695462), (76, 2917470), (79, 2806680), (95, 2333976), (114, 1944980), (120, 1847731), (152, 1458735), (158, 1403340), (190, 1166988), (228, 972490), (237, 935560), (285, 777992), (316, 701670), (380, 583494), (395, 561336), (456, 486245), (474, 467780), (570, 388996), (632, 350835), (760, 291747), (790, 280668), (948, 233890), (1140, 194498), (1185, 187112), (1231, 180120), (1501, 147720), (1580, 140334), (1896, 116945), (2280, 97249), (2370, 93556), (2462, 90060), (3002, 73860), (3160, 70167), (3693, 60040), (4503, 49240), (4740, 46778), (4924, 45030), (6004, 36930), (6155, 36024), (7386, 30020), (7505, 29544), (9006, 24620), (9480, 23389), (9848, 22515), (12008, 18465), (12310, 18012), (14772, 15010)]