28671708

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{131}}^1$

素因数の和:235

約数の個数: 96

約数和(自身を含む): 76995072

約数和(自身を除く): 48323364

約数列:

[1, 2, 3, 4, 6, 12, 13, 23, 26, 39, 46, 52, 61, 69, 78, 92, 122, 131, 138, 156, 183, 244, 262, 276, 299, 366, 393, 524, 598, 732, 786, 793, 897, 1196, 1403, 1572, 1586, 1703, 1794, 2379, 2806, 3013, 3172, 3406, 3588, 4209, 4758, 5109, 5612, 6026, 6812, 7991, 8418, 9039, 9516, 10218, 12052, 15982, 16836, 18078, 18239, 20436, 23973, 31964, 36156, 36478, 39169, 47946, 54717, 72956, 78338, 95892, 103883, 109434, 117507, 156676, 183793, 207766, 218868, 235014, 311649, 367586, 415532, 470028, 551379, 623298, 735172, 1102758, 1246596, 2205516, 2389309, 4778618, 7167927, 9557236, 14335854, 28671708]

約数ペア:

[(1, 28671708), (2, 14335854), (3, 9557236), (4, 7167927), (6, 4778618), (12, 2389309), (13, 2205516), (23, 1246596), (26, 1102758), (39, 735172), (46, 623298), (52, 551379), (61, 470028), (69, 415532), (78, 367586), (92, 311649), (122, 235014), (131, 218868), (138, 207766), (156, 183793), (183, 156676), (244, 117507), (262, 109434), (276, 103883), (299, 95892), (366, 78338), (393, 72956), (524, 54717), (598, 47946), (732, 39169), (786, 36478), (793, 36156), (897, 31964), (1196, 23973), (1403, 20436), (1572, 18239), (1586, 18078), (1703, 16836), (1794, 15982), (2379, 12052), (2806, 10218), (3013, 9516), (3172, 9039), (3406, 8418), (3588, 7991), (4209, 6812), (4758, 6026), (5109, 5612)]