1279968200

素因数分解:

$2^3\times 5^2\times 7^2\times {\mathrm{211}}^1\times {\mathrm{619}}^1$

素因数の和:860

約数の個数: 144

約数和(自身を含む): 3483817200

約数和(自身を除く): 2203849000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 49, 50, 56, 70, 98, 100, 140, 175, 196, 200, 211, 245, 280, 350, 392, 422, 490, 619, 700, 844, 980, 1055, 1225, 1238, 1400, 1477, 1688, 1960, 2110, 2450, 2476, 2954, 3095, 4220, 4333, 4900, 4952, 5275, 5908, 6190, 7385, 8440, 8666, 9800, 10339, 10550, 11816, 12380, 14770, 15475, 17332, 20678, 21100, 21665, 24760, 29540, 30331, 30950, 34664, 36925, 41356, 42200, 43330, 51695, 59080, 60662, 61900, 73850, 82712, 86660, 103390, 108325, 121324, 123800, 130609, 147700, 151655, 173320, 206780, 216650, 242648, 258475, 261218, 295400, 303310, 413560, 433300, 516950, 522436, 606620, 653045, 758275, 866600, 914263, 1033900, 1044872, 1213240, 1306090, 1516550, 1828526, 2067800, 2612180, 3033100, 3265225, 3657052, 4571315, 5224360, 6066200, 6399841, 6530450, 7314104, 9142630, 12799682, 13060900, 18285260, 22856575, 25599364, 26121800, 31999205, 36570520, 45713150, 51198728, 63998410, 91426300, 127996820, 159996025, 182852600, 255993640, 319992050, 639984100, 1279968200]

約数ペア:

[(1, 1279968200), (2, 639984100), (4, 319992050), (5, 255993640), (7, 182852600), (8, 159996025), (10, 127996820), (14, 91426300), (20, 63998410), (25, 51198728), (28, 45713150), (35, 36570520), (40, 31999205), (49, 26121800), (50, 25599364), (56, 22856575), (70, 18285260), (98, 13060900), (100, 12799682), (140, 9142630), (175, 7314104), (196, 6530450), (200, 6399841), (211, 6066200), (245, 5224360), (280, 4571315), (350, 3657052), (392, 3265225), (422, 3033100), (490, 2612180), (619, 2067800), (700, 1828526), (844, 1516550), (980, 1306090), (1055, 1213240), (1225, 1044872), (1238, 1033900), (1400, 914263), (1477, 866600), (1688, 758275), (1960, 653045), (2110, 606620), (2450, 522436), (2476, 516950), (2954, 433300), (3095, 413560), (4220, 303310), (4333, 295400), (4900, 261218), (4952, 258475), (5275, 242648), (5908, 216650), (6190, 206780), (7385, 173320), (8440, 151655), (8666, 147700), (9800, 130609), (10339, 123800), (10550, 121324), (11816, 108325), (12380, 103390), (14770, 86660), (15475, 82712), (17332, 73850), (20678, 61900), (21100, 60662), (21665, 59080), (24760, 51695), (29540, 43330), (30331, 42200), (30950, 41356), (34664, 36925)]