18345720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{23}}^2$

素因数の和:94

約数の個数: 144

約数和(自身を含む): 61117560

約数和(自身を除く): 42771840

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 23, 24, 30, 34, 40, 46, 51, 60, 68, 69, 85, 92, 102, 115, 120, 136, 138, 170, 184, 204, 230, 255, 276, 289, 340, 345, 391, 408, 460, 510, 529, 552, 578, 680, 690, 782, 867, 920, 1020, 1058, 1156, 1173, 1380, 1445, 1564, 1587, 1734, 1955, 2040, 2116, 2312, 2346, 2645, 2760, 2890, 3128, 3174, 3468, 3910, 4232, 4335, 4692, 5290, 5780, 5865, 6348, 6647, 6936, 7820, 7935, 8670, 8993, 9384, 10580, 11560, 11730, 12696, 13294, 15640, 15870, 17340, 17986, 19941, 21160, 23460, 26588, 26979, 31740, 33235, 34680, 35972, 39882, 44965, 46920, 53176, 53958, 63480, 66470, 71944, 79764, 89930, 99705, 107916, 132940, 134895, 152881, 159528, 179860, 199410, 215832, 265880, 269790, 305762, 359720, 398820, 458643, 539580, 611524, 764405, 797640, 917286, 1079160, 1223048, 1528810, 1834572, 2293215, 3057620, 3669144, 4586430, 6115240, 9172860, 18345720]

約数ペア:

[(1, 18345720), (2, 9172860), (3, 6115240), (4, 4586430), (5, 3669144), (6, 3057620), (8, 2293215), (10, 1834572), (12, 1528810), (15, 1223048), (17, 1079160), (20, 917286), (23, 797640), (24, 764405), (30, 611524), (34, 539580), (40, 458643), (46, 398820), (51, 359720), (60, 305762), (68, 269790), (69, 265880), (85, 215832), (92, 199410), (102, 179860), (115, 159528), (120, 152881), (136, 134895), (138, 132940), (170, 107916), (184, 99705), (204, 89930), (230, 79764), (255, 71944), (276, 66470), (289, 63480), (340, 53958), (345, 53176), (391, 46920), (408, 44965), (460, 39882), (510, 35972), (529, 34680), (552, 33235), (578, 31740), (680, 26979), (690, 26588), (782, 23460), (867, 21160), (920, 19941), (1020, 17986), (1058, 17340), (1156, 15870), (1173, 15640), (1380, 13294), (1445, 12696), (1564, 11730), (1587, 11560), (1734, 10580), (1955, 9384), (2040, 8993), (2116, 8670), (2312, 7935), (2346, 7820), (2645, 6936), (2760, 6647), (2890, 6348), (3128, 5865), (3174, 5780), (3468, 5290), (3910, 4692), (4232, 4335)]