84387800

素因数分解:

$2^3\times 5^2\times 7^2\times {\mathrm{79}}^1\times {\mathrm{109}}^1$

素因数の和:218

約数の個数: 144

約数和(自身を含む): 233244000

約数和(自身を除く): 148856200

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 49, 50, 56, 70, 79, 98, 100, 109, 140, 158, 175, 196, 200, 218, 245, 280, 316, 350, 392, 395, 436, 490, 545, 553, 632, 700, 763, 790, 872, 980, 1090, 1106, 1225, 1400, 1526, 1580, 1960, 1975, 2180, 2212, 2450, 2725, 2765, 3052, 3160, 3815, 3871, 3950, 4360, 4424, 4900, 5341, 5450, 5530, 6104, 7630, 7742, 7900, 8611, 9800, 10682, 10900, 11060, 13825, 15260, 15484, 15800, 17222, 19075, 19355, 21364, 21800, 22120, 26705, 27650, 30520, 30968, 34444, 38150, 38710, 42728, 43055, 53410, 55300, 60277, 68888, 76300, 77420, 86110, 96775, 106820, 110600, 120554, 133525, 152600, 154840, 172220, 193550, 213640, 215275, 241108, 267050, 301385, 344440, 387100, 421939, 430550, 482216, 534100, 602770, 774200, 843878, 861100, 1068200, 1205540, 1506925, 1687756, 1722200, 2109695, 2411080, 3013850, 3375512, 4219390, 6027700, 8438780, 10548475, 12055400, 16877560, 21096950, 42193900, 84387800]

約数ペア:

[(1, 84387800), (2, 42193900), (4, 21096950), (5, 16877560), (7, 12055400), (8, 10548475), (10, 8438780), (14, 6027700), (20, 4219390), (25, 3375512), (28, 3013850), (35, 2411080), (40, 2109695), (49, 1722200), (50, 1687756), (56, 1506925), (70, 1205540), (79, 1068200), (98, 861100), (100, 843878), (109, 774200), (140, 602770), (158, 534100), (175, 482216), (196, 430550), (200, 421939), (218, 387100), (245, 344440), (280, 301385), (316, 267050), (350, 241108), (392, 215275), (395, 213640), (436, 193550), (490, 172220), (545, 154840), (553, 152600), (632, 133525), (700, 120554), (763, 110600), (790, 106820), (872, 96775), (980, 86110), (1090, 77420), (1106, 76300), (1225, 68888), (1400, 60277), (1526, 55300), (1580, 53410), (1960, 43055), (1975, 42728), (2180, 38710), (2212, 38150), (2450, 34444), (2725, 30968), (2765, 30520), (3052, 27650), (3160, 26705), (3815, 22120), (3871, 21800), (3950, 21364), (4360, 19355), (4424, 19075), (4900, 17222), (5341, 15800), (5450, 15484), (5530, 15260), (6104, 13825), (7630, 11060), (7742, 10900), (7900, 10682), (8611, 9800)]