28021532

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{317}}^1$

素因数の和:387

約数の個数: 72

約数和(自身を含む): 63948528

約数和(自身を除く): 35926996

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 41, 44, 49, 77, 82, 98, 154, 164, 196, 287, 308, 317, 451, 539, 574, 634, 902, 1078, 1148, 1268, 1804, 2009, 2156, 2219, 3157, 3487, 4018, 4438, 6314, 6974, 8036, 8876, 12628, 12997, 13948, 15533, 22099, 24409, 25994, 31066, 44198, 48818, 51988, 62132, 88396, 90979, 97636, 142967, 170863, 181958, 285934, 341726, 363916, 571868, 636853, 683452, 1000769, 1273706, 2001538, 2547412, 4003076, 7005383, 14010766, 28021532]

約数ペア:

[(1, 28021532), (2, 14010766), (4, 7005383), (7, 4003076), (11, 2547412), (14, 2001538), (22, 1273706), (28, 1000769), (41, 683452), (44, 636853), (49, 571868), (77, 363916), (82, 341726), (98, 285934), (154, 181958), (164, 170863), (196, 142967), (287, 97636), (308, 90979), (317, 88396), (451, 62132), (539, 51988), (574, 48818), (634, 44198), (902, 31066), (1078, 25994), (1148, 24409), (1268, 22099), (1804, 15533), (2009, 13948), (2156, 12997), (2219, 12628), (3157, 8876), (3487, 8036), (4018, 6974), (4438, 6314)]