20091645

素因数分解:

$3^4\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{373}}^1$

素因数の和:416

約数の個数: 80

約数和(自身を含む): 43443840

約数和(自身を除く): 23352195

約数列:

[1, 3, 5, 7, 9, 15, 19, 21, 27, 35, 45, 57, 63, 81, 95, 105, 133, 135, 171, 189, 285, 315, 373, 399, 405, 513, 567, 665, 855, 945, 1119, 1197, 1539, 1865, 1995, 2565, 2611, 2835, 3357, 3591, 5595, 5985, 7087, 7695, 7833, 10071, 10773, 13055, 16785, 17955, 21261, 23499, 30213, 35435, 39165, 49609, 50355, 53865, 63783, 70497, 106305, 117495, 148827, 151065, 191349, 211491, 248045, 318915, 352485, 446481, 574047, 744135, 956745, 1057455, 1339443, 2232405, 2870235, 4018329, 6697215, 20091645]

約数ペア:

[(1, 20091645), (3, 6697215), (5, 4018329), (7, 2870235), (9, 2232405), (15, 1339443), (19, 1057455), (21, 956745), (27, 744135), (35, 574047), (45, 446481), (57, 352485), (63, 318915), (81, 248045), (95, 211491), (105, 191349), (133, 151065), (135, 148827), (171, 117495), (189, 106305), (285, 70497), (315, 63783), (373, 53865), (399, 50355), (405, 49609), (513, 39165), (567, 35435), (665, 30213), (855, 23499), (945, 21261), (1119, 17955), (1197, 16785), (1539, 13055), (1865, 10773), (1995, 10071), (2565, 7833), (2611, 7695), (2835, 7087), (3357, 5985), (3591, 5595)]