178822980

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{347}}^1\times {\mathrm{409}}^1$

素因数の和:778

約数の個数: 144

約数和(自身を含む): 623226240

約数和(自身を除く): 444403260

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 347, 409, 420, 630, 694, 818, 1041, 1227, 1260, 1388, 1636, 1735, 2045, 2082, 2429, 2454, 2863, 3123, 3470, 3681, 4090, 4164, 4858, 4908, 5205, 5726, 6135, 6246, 6940, 7287, 7362, 8180, 8589, 9716, 10410, 11452, 12145, 12270, 12492, 14315, 14574, 14724, 15615, 17178, 18405, 20820, 21861, 24290, 24540, 25767, 28630, 29148, 31230, 34356, 36435, 36810, 42945, 43722, 48580, 51534, 57260, 62460, 72870, 73620, 85890, 87444, 103068, 109305, 128835, 141923, 145740, 171780, 218610, 257670, 283846, 425769, 437220, 515340, 567692, 709615, 851538, 993461, 1277307, 1419230, 1703076, 1986922, 2128845, 2554614, 2838460, 2980383, 3973844, 4257690, 4967305, 5109228, 5960766, 6386535, 8515380, 8941149, 9934610, 11921532, 12773070, 14901915, 17882298, 19869220, 25546140, 29803830, 35764596, 44705745, 59607660, 89411490, 178822980]

約数ペア:

[(1, 178822980), (2, 89411490), (3, 59607660), (4, 44705745), (5, 35764596), (6, 29803830), (7, 25546140), (9, 19869220), (10, 17882298), (12, 14901915), (14, 12773070), (15, 11921532), (18, 9934610), (20, 8941149), (21, 8515380), (28, 6386535), (30, 5960766), (35, 5109228), (36, 4967305), (42, 4257690), (45, 3973844), (60, 2980383), (63, 2838460), (70, 2554614), (84, 2128845), (90, 1986922), (105, 1703076), (126, 1419230), (140, 1277307), (180, 993461), (210, 851538), (252, 709615), (315, 567692), (347, 515340), (409, 437220), (420, 425769), (630, 283846), (694, 257670), (818, 218610), (1041, 171780), (1227, 145740), (1260, 141923), (1388, 128835), (1636, 109305), (1735, 103068), (2045, 87444), (2082, 85890), (2429, 73620), (2454, 72870), (2863, 62460), (3123, 57260), (3470, 51534), (3681, 48580), (4090, 43722), (4164, 42945), (4858, 36810), (4908, 36435), (5205, 34356), (5726, 31230), (6135, 29148), (6246, 28630), (6940, 25767), (7287, 24540), (7362, 24290), (8180, 21861), (8589, 20820), (9716, 18405), (10410, 17178), (11452, 15615), (12145, 14724), (12270, 14574), (12492, 14315)]