263276988

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^2\times {\mathrm{131}}^1\times {\mathrm{991}}^1$

素因数の和:1155

約数の個数: 72

約数和(自身を含む): 670957056

約数和(自身を除く): 407680068

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 131, 156, 169, 262, 338, 393, 507, 524, 676, 786, 991, 1014, 1572, 1703, 1982, 2028, 2973, 3406, 3964, 5109, 5946, 6812, 10218, 11892, 12883, 20436, 22139, 25766, 38649, 44278, 51532, 66417, 77298, 88556, 129821, 132834, 154596, 167479, 259642, 265668, 334958, 389463, 502437, 519284, 669916, 778926, 1004874, 1557852, 1687673, 2009748, 3375346, 5063019, 6750692, 10126038, 20252076, 21939749, 43879498, 65819247, 87758996, 131638494, 263276988]

約数ペア:

[(1, 263276988), (2, 131638494), (3, 87758996), (4, 65819247), (6, 43879498), (12, 21939749), (13, 20252076), (26, 10126038), (39, 6750692), (52, 5063019), (78, 3375346), (131, 2009748), (156, 1687673), (169, 1557852), (262, 1004874), (338, 778926), (393, 669916), (507, 519284), (524, 502437), (676, 389463), (786, 334958), (991, 265668), (1014, 259642), (1572, 167479), (1703, 154596), (1982, 132834), (2028, 129821), (2973, 88556), (3406, 77298), (3964, 66417), (5109, 51532), (5946, 44278), (6812, 38649), (10218, 25766), (11892, 22139), (12883, 20436)]