28131248

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1$

素因数の和:166

約数の個数: 80

約数和(自身を含む): 61350240

約数和(自身を除く): 33218992

約数列:

[1, 2, 4, 8, 16, 19, 37, 38, 41, 61, 74, 76, 82, 122, 148, 152, 164, 244, 296, 304, 328, 488, 592, 656, 703, 779, 976, 1159, 1406, 1517, 1558, 2257, 2318, 2501, 2812, 3034, 3116, 4514, 4636, 5002, 5624, 6068, 6232, 9028, 9272, 10004, 11248, 12136, 12464, 18056, 18544, 20008, 24272, 28823, 36112, 40016, 42883, 47519, 57646, 85766, 92537, 95038, 115292, 171532, 185074, 190076, 230584, 343064, 370148, 380152, 461168, 686128, 740296, 760304, 1480592, 1758203, 3516406, 7032812, 14065624, 28131248]

約数ペア:

[(1, 28131248), (2, 14065624), (4, 7032812), (8, 3516406), (16, 1758203), (19, 1480592), (37, 760304), (38, 740296), (41, 686128), (61, 461168), (74, 380152), (76, 370148), (82, 343064), (122, 230584), (148, 190076), (152, 185074), (164, 171532), (244, 115292), (296, 95038), (304, 92537), (328, 85766), (488, 57646), (592, 47519), (656, 42883), (703, 40016), (779, 36112), (976, 28823), (1159, 24272), (1406, 20008), (1517, 18544), (1558, 18056), (2257, 12464), (2318, 12136), (2501, 11248), (2812, 10004), (3034, 9272), (3116, 9028), (4514, 6232), (4636, 6068), (5002, 5624)]