72135020

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{97}}^1\times {\mathrm{103}}^1$

素因数の和:247

約数の個数: 72

約数和(自身を含む): 163092384

約数和(自身を除く): 90957364

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 97, 103, 190, 194, 206, 361, 380, 388, 412, 485, 515, 722, 970, 1030, 1444, 1805, 1843, 1940, 1957, 2060, 3610, 3686, 3914, 7220, 7372, 7828, 9215, 9785, 9991, 18430, 19570, 19982, 35017, 36860, 37183, 39140, 39964, 49955, 70034, 74366, 99910, 140068, 148732, 175085, 185915, 189829, 199820, 350170, 371830, 379658, 700340, 743660, 759316, 949145, 1898290, 3606751, 3796580, 7213502, 14427004, 18033755, 36067510, 72135020]

約数ペア:

[(1, 72135020), (2, 36067510), (4, 18033755), (5, 14427004), (10, 7213502), (19, 3796580), (20, 3606751), (38, 1898290), (76, 949145), (95, 759316), (97, 743660), (103, 700340), (190, 379658), (194, 371830), (206, 350170), (361, 199820), (380, 189829), (388, 185915), (412, 175085), (485, 148732), (515, 140068), (722, 99910), (970, 74366), (1030, 70034), (1444, 49955), (1805, 39964), (1843, 39140), (1940, 37183), (1957, 36860), (2060, 35017), (3610, 19982), (3686, 19570), (3914, 18430), (7220, 9991), (7372, 9785), (7828, 9215)]