219492400

素因数分解:

$2^4\times 5^2\times {\mathrm{31}}^2\times {\mathrm{571}}^1$

素因数の和:651

約数の個数: 90

約数和(自身を含む): 545844156

約数和(自身を除く): 326351756

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 40, 50, 62, 80, 100, 124, 155, 200, 248, 310, 400, 496, 571, 620, 775, 961, 1142, 1240, 1550, 1922, 2284, 2480, 2855, 3100, 3844, 4568, 4805, 5710, 6200, 7688, 9136, 9610, 11420, 12400, 14275, 15376, 17701, 19220, 22840, 24025, 28550, 35402, 38440, 45680, 48050, 57100, 70804, 76880, 88505, 96100, 114200, 141608, 177010, 192200, 228400, 283216, 354020, 384400, 442525, 548731, 708040, 885050, 1097462, 1416080, 1770100, 2194924, 2743655, 3540200, 4389848, 5487310, 7080400, 8779696, 10974620, 13718275, 21949240, 27436550, 43898480, 54873100, 109746200, 219492400]

約数ペア:

[(1, 219492400), (2, 109746200), (4, 54873100), (5, 43898480), (8, 27436550), (10, 21949240), (16, 13718275), (20, 10974620), (25, 8779696), (31, 7080400), (40, 5487310), (50, 4389848), (62, 3540200), (80, 2743655), (100, 2194924), (124, 1770100), (155, 1416080), (200, 1097462), (248, 885050), (310, 708040), (400, 548731), (496, 442525), (571, 384400), (620, 354020), (775, 283216), (961, 228400), (1142, 192200), (1240, 177010), (1550, 141608), (1922, 114200), (2284, 96100), (2480, 88505), (2855, 76880), (3100, 70804), (3844, 57100), (4568, 48050), (4805, 45680), (5710, 38440), (6200, 35402), (7688, 28550), (9136, 24025), (9610, 22840), (11420, 19220), (12400, 17701), (14275, 15376)]