30728040

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{233}}^1$

素因数の和:411

約数の個数: 128

約数和(自身を含む): 106479360

約数和(自身を除く): 75751320

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 157, 168, 210, 233, 280, 314, 420, 466, 471, 628, 699, 785, 840, 932, 942, 1099, 1165, 1256, 1398, 1570, 1631, 1864, 1884, 2198, 2330, 2355, 2796, 3140, 3262, 3297, 3495, 3768, 4396, 4660, 4710, 4893, 5495, 5592, 6280, 6524, 6594, 6990, 8155, 8792, 9320, 9420, 9786, 10990, 13048, 13188, 13980, 16310, 16485, 18840, 19572, 21980, 24465, 26376, 27960, 32620, 32970, 36581, 39144, 43960, 48930, 65240, 65940, 73162, 97860, 109743, 131880, 146324, 182905, 195720, 219486, 256067, 292648, 365810, 438972, 512134, 548715, 731620, 768201, 877944, 1024268, 1097430, 1280335, 1463240, 1536402, 2048536, 2194860, 2560670, 3072804, 3841005, 4389720, 5121340, 6145608, 7682010, 10242680, 15364020, 30728040]

約数ペア:

[(1, 30728040), (2, 15364020), (3, 10242680), (4, 7682010), (5, 6145608), (6, 5121340), (7, 4389720), (8, 3841005), (10, 3072804), (12, 2560670), (14, 2194860), (15, 2048536), (20, 1536402), (21, 1463240), (24, 1280335), (28, 1097430), (30, 1024268), (35, 877944), (40, 768201), (42, 731620), (56, 548715), (60, 512134), (70, 438972), (84, 365810), (105, 292648), (120, 256067), (140, 219486), (157, 195720), (168, 182905), (210, 146324), (233, 131880), (280, 109743), (314, 97860), (420, 73162), (466, 65940), (471, 65240), (628, 48930), (699, 43960), (785, 39144), (840, 36581), (932, 32970), (942, 32620), (1099, 27960), (1165, 26376), (1256, 24465), (1398, 21980), (1570, 19572), (1631, 18840), (1864, 16485), (1884, 16310), (2198, 13980), (2330, 13188), (2355, 13048), (2796, 10990), (3140, 9786), (3262, 9420), (3297, 9320), (3495, 8792), (3768, 8155), (4396, 6990), (4660, 6594), (4710, 6524), (4893, 6280), (5495, 5592)]