90147780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{613}}^1$

素因数の和:690

約数の個数: 144

約数和(自身を含む): 295014720

約数和(自身を除く): 204866940

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 43, 45, 57, 60, 76, 86, 90, 95, 114, 129, 171, 172, 180, 190, 215, 228, 258, 285, 342, 380, 387, 430, 516, 570, 613, 645, 684, 774, 817, 855, 860, 1140, 1226, 1290, 1548, 1634, 1710, 1839, 1935, 2451, 2452, 2580, 3065, 3268, 3420, 3678, 3870, 4085, 4902, 5517, 6130, 7353, 7356, 7740, 8170, 9195, 9804, 11034, 11647, 12255, 12260, 14706, 16340, 18390, 22068, 23294, 24510, 26359, 27585, 29412, 34941, 36765, 36780, 46588, 49020, 52718, 55170, 58235, 69882, 73530, 79077, 104823, 105436, 110340, 116470, 131795, 139764, 147060, 158154, 174705, 209646, 232940, 237231, 263590, 316308, 349410, 395385, 419292, 474462, 500821, 524115, 527180, 698820, 790770, 948924, 1001642, 1048230, 1186155, 1502463, 1581540, 2003284, 2096460, 2372310, 2504105, 3004926, 4507389, 4744620, 5008210, 6009852, 7512315, 9014778, 10016420, 15024630, 18029556, 22536945, 30049260, 45073890, 90147780]

約数ペア:

[(1, 90147780), (2, 45073890), (3, 30049260), (4, 22536945), (5, 18029556), (6, 15024630), (9, 10016420), (10, 9014778), (12, 7512315), (15, 6009852), (18, 5008210), (19, 4744620), (20, 4507389), (30, 3004926), (36, 2504105), (38, 2372310), (43, 2096460), (45, 2003284), (57, 1581540), (60, 1502463), (76, 1186155), (86, 1048230), (90, 1001642), (95, 948924), (114, 790770), (129, 698820), (171, 527180), (172, 524115), (180, 500821), (190, 474462), (215, 419292), (228, 395385), (258, 349410), (285, 316308), (342, 263590), (380, 237231), (387, 232940), (430, 209646), (516, 174705), (570, 158154), (613, 147060), (645, 139764), (684, 131795), (774, 116470), (817, 110340), (855, 105436), (860, 104823), (1140, 79077), (1226, 73530), (1290, 69882), (1548, 58235), (1634, 55170), (1710, 52718), (1839, 49020), (1935, 46588), (2451, 36780), (2452, 36765), (2580, 34941), (3065, 29412), (3268, 27585), (3420, 26359), (3678, 24510), (3870, 23294), (4085, 22068), (4902, 18390), (5517, 16340), (6130, 14706), (7353, 12260), (7356, 12255), (7740, 11647), (8170, 11034), (9195, 9804)]