81900564460

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{28636561}}^1$

素因数の和:28636594

約数の個数: 48

約数和(自身を含む): 202059581472

約数和(自身を除く): 120159017012

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 110, 130, 143, 220, 260, 286, 572, 715, 1430, 2860, 28636561, 57273122, 114546244, 143182805, 286365610, 315002171, 372275293, 572731220, 630004342, 744550586, 1260008684, 1489101172, 1575010855, 1861376465, 3150021710, 3722752930, 4095028223, 6300043420, 7445505860, 8190056446, 16380112892, 20475141115, 40950282230, 81900564460]

約数ペア:

[(1, 81900564460), (2, 40950282230), (4, 20475141115), (5, 16380112892), (10, 8190056446), (11, 7445505860), (13, 6300043420), (20, 4095028223), (22, 3722752930), (26, 3150021710), (44, 1861376465), (52, 1575010855), (55, 1489101172), (65, 1260008684), (110, 744550586), (130, 630004342), (143, 572731220), (220, 372275293), (260, 315002171), (286, 286365610), (572, 143182805), (715, 114546244), (1430, 57273122), (2860, 28636561)]