280731650

素因数分解:

$2^1\times 5^2\times {\mathrm{19}}^2\times {\mathrm{103}}^1\times {\mathrm{151}}^1$

素因数の和:304

約数の個数: 72

約数和(自身を含む): 560124864

約数和(自身を除く): 279393214

約数列:

[1, 2, 5, 10, 19, 25, 38, 50, 95, 103, 151, 190, 206, 302, 361, 475, 515, 722, 755, 950, 1030, 1510, 1805, 1957, 2575, 2869, 3610, 3775, 3914, 5150, 5738, 7550, 9025, 9785, 14345, 15553, 18050, 19570, 28690, 31106, 37183, 48925, 54511, 71725, 74366, 77765, 97850, 109022, 143450, 155530, 185915, 272555, 295507, 371830, 388825, 545110, 591014, 777650, 929575, 1362775, 1477535, 1859150, 2725550, 2955070, 5614633, 7387675, 11229266, 14775350, 28073165, 56146330, 140365825, 280731650]

約数ペア:

[(1, 280731650), (2, 140365825), (5, 56146330), (10, 28073165), (19, 14775350), (25, 11229266), (38, 7387675), (50, 5614633), (95, 2955070), (103, 2725550), (151, 1859150), (190, 1477535), (206, 1362775), (302, 929575), (361, 777650), (475, 591014), (515, 545110), (722, 388825), (755, 371830), (950, 295507), (1030, 272555), (1510, 185915), (1805, 155530), (1957, 143450), (2575, 109022), (2869, 97850), (3610, 77765), (3775, 74366), (3914, 71725), (5150, 54511), (5738, 48925), (7550, 37183), (9025, 31106), (9785, 28690), (14345, 19570), (15553, 18050)]